chore: add agentloop validation file (#563)

Closes #563

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.devcontainer/devcontainer.json

@@ -0,0 +1,10 @@
+{
+    "name": "SharedInbox Dev",
+    "build": {
+        "dockerfile": "../Dockerfile.dev",
+        "context": ".."
+    },
+    "workspaceFolder": "/src",
+    "workspaceMount": "source=${localWorkspaceFolder},target=/src,type=bind,consistency=cached",
+    "remoteUser": "ci"
+}

.forgejo/workflows/ci.yml

@@ -19,21 +19,14 @@ jobs:
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi

.forgejo/workflows/deploy.yml

@@ -21,21 +21,14 @@ jobs:
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi
@@ -58,43 +51,27 @@ for r in data.get('workflow_runs', []):
 
           HEAD_SHA=$(git rev-parse HEAD)
 
-          # Find the most recent workflow run where deploy-playstore actually succeeded
-          # (not merely skipped). Bug fix: previous code used commit_sha (always None in
-          # Forgejo's API) instead of head_sha, causing LAST_DEPLOYED_SHA to be empty on
-          # every run and the fallback diff to only cover HEAD~1..HEAD.
+          # Find the most recent successful "Build & Deploy to Play Store" task. Forgejo's API
+          # does not expose per-run jobs (/runs/{id}/jobs returns 404), so query /actions/tasks
+          # (per-job records) directly and filter for the task we care about. Filtering at the
+          # task level also distinguishes runs where the Play Store job actually ran from runs
+          # where it was skipped — at the run level both show status=success.
           LAST_DEPLOYED_SHA=$(python3 - << 'PYEOF'
           import json, os, sys, urllib.request
           token = os.environ.get("FORGEJO_TOKEN", "")
           server = os.environ.get("GITHUB_SERVER_URL", "").rstrip("/")
           repo = os.environ.get("GITHUB_REPOSITORY", "")
-          base_api = f"{server}/api/v1/repos/{repo}/actions"
-          url = f"{base_api}/runs?workflow_id=deploy.yml&status=success&limit=10"
+          url = f"{server}/api/v1/repos/{repo}/actions/tasks?status=success&limit=100"
           req = urllib.request.Request(url, headers={"Authorization": f"token {token}"})
           try:
-              with urllib.request.urlopen(req) as r:
+              with urllib.request.urlopen(req, timeout=60) as r:
                   data = json.loads(r.read())
-              runs = [
-                  r for r in data.get("workflow_runs", [])
-                  if r.get("status") == "success"
-              ]
-              # Walk runs newest-first; pick the first one where deploy-playstore
-              # actually ran (conclusion=success), not just skipped.
-              for run in runs:
-                  run_id = run.get("id")
-                  jobs_url = f"{base_api}/runs/{run_id}/jobs"
-                  jobs_req = urllib.request.Request(jobs_url, headers={"Authorization": f"token {token}"})
-                  try:
-                      with urllib.request.urlopen(jobs_req) as jr:
-                          jobs_data = json.loads(jr.read())
-                      for job in jobs_data.get("workflow_jobs", []):
-                          if "Deploy to Play Store" in job.get("name", "") and (
-                              job.get("conclusion") == "success" or
-                              job.get("status") == "success"
-                          ):
-                              print(run.get("head_sha") or "")
-                              sys.exit(0)
-                  except Exception:
-                      pass  # skip this run if jobs API fails
+              for t in data.get("workflow_runs", []):
+                  if (t.get("workflow_id") == "deploy.yml"
+                      and t.get("name") == "Build & Deploy to Play Store"
+                      and t.get("status") == "success"):
+                      print(t.get("head_sha") or "")
+                      sys.exit(0)
               print("")
           except Exception as e:
               print(f"::error::LAST_DEPLOYED_SHA lookup failed ({type(e).__name__}: {e})")
@@ -171,21 +148,14 @@ for r in data.get('workflow_runs', []):
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi
@@ -229,21 +199,14 @@ for r in data.get('workflow_runs', []):
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi
@@ -281,21 +244,14 @@ for r in data.get('workflow_runs', []):
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi
@@ -338,21 +294,14 @@ for r in data.get('workflow_runs', []):
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi

.forgejo/workflows/firebase-tests.yml

@@ -20,21 +20,14 @@ jobs:
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi
@@ -80,21 +73,14 @@ for r in data.get('workflow_runs', []):
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi
@@ -149,7 +135,7 @@ for r in data.get('workflow_runs', []):
           repo_labels = api_get("/labels")
           label_map = {l["name"]: l["id"] for l in repo_labels}
 
-          label_ids = [label_map["Ready"]] if "Ready" in label_map else []
+          label_ids = [label_map["loop/code"]] if "loop/code" in label_map else []
 
           title = "Firebase Tests failed — find root cause and fix"
           body = (

.forgejo/workflows/publish-dev-container.yml

@@ -0,0 +1,44 @@
+name: Publish Dev Container
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'Dockerfile.dev'
+      - '.devcontainer/devcontainer.json'
+      - '.forgejo/workflows/publish-dev-container.yml'
+  workflow_dispatch:
+
+jobs:
+  publish:
+    name: Build & Push sharedinbox-dev
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    env:
+      REGISTRY: codeberg.org
+      IMAGE: codeberg.org/guettli/sharedinbox-dev
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Codeberg container registry
+        env:
+          FORGEJO_TOKEN: ${{ github.token }}
+        run: |
+          echo "$FORGEJO_TOKEN" \
+            | docker login "$REGISTRY" -u "${{ github.actor }}" --password-stdin
+
+      - name: Build image
+        run: |
+          SHORT_SHA="${GITHUB_SHA:0:7}"
+          docker build \
+            -t "$IMAGE:latest" \
+            -t "$IMAGE:$SHORT_SHA" \
+            -f Dockerfile.dev \
+            .
+
+      - name: Push image
+        run: |
+          SHORT_SHA="${GITHUB_SHA:0:7}"
+          docker push "$IMAGE:latest"
+          docker push "$IMAGE:$SHORT_SHA"

.forgejo/workflows/website.yml

@@ -12,10 +12,103 @@ on:
   workflow_dispatch:
 
 jobs:
+  check-changes:
+    name: Detect Website Changes
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    outputs:
+      has_changes: ${{ steps.diff.outputs.has_changes }}
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Detect website changes since last deploy
+        id: diff
+        shell: bash
+        env:
+          FORGEJO_TOKEN: ${{ github.token }}
+        run: |
+          # On push or workflow_dispatch always deploy
+          if [ "$GITHUB_EVENT_NAME" != "schedule" ]; then
+            echo "has_changes=true" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          HEAD_SHA=$(git rev-parse HEAD)
+
+          # Find the most recent successful "Build & Update Website" task. Forgejo's API
+          # does not expose per-run jobs (/runs/{id}/jobs returns 404), so query /actions/tasks
+          # (per-job records) directly and filter for the task we care about. Filtering at the
+          # task level also distinguishes runs where the deploy job actually ran from runs
+          # where it was skipped — at the run level both show status=success.
+          LAST_DEPLOYED_SHA=$(python3 - << 'PYEOF'
+          import json, os, sys, urllib.request
+          token = os.environ.get("FORGEJO_TOKEN", "")
+          server = os.environ.get("GITHUB_SERVER_URL", "").rstrip("/")
+          repo = os.environ.get("GITHUB_REPOSITORY", "")
+          url = f"{server}/api/v1/repos/{repo}/actions/tasks?status=success&limit=100"
+          req = urllib.request.Request(url, headers={"Authorization": f"token {token}"})
+          try:
+              with urllib.request.urlopen(req, timeout=60) as r:
+                  data = json.loads(r.read())
+              for t in data.get("workflow_runs", []):
+                  if (t.get("workflow_id") == "website.yml"
+                      and t.get("name") == "Build & Update Website"
+                      and t.get("status") == "success"):
+                      print(t.get("head_sha") or "")
+                      sys.exit(0)
+              print("")
+          except Exception as e:
+              print(f"::error::LAST_DEPLOYED_SHA lookup failed ({type(e).__name__}: {e})")
+              print("")
+          PYEOF
+          )
+
+          if [ -z "$LAST_DEPLOYED_SHA" ]; then
+            echo "::warning::Could not determine last successfully deployed SHA — deploying as a precaution"
+            echo "has_changes=true" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          if [ "$HEAD_SHA" = "$LAST_DEPLOYED_SHA" ]; then
+            echo "::notice::Website deploy SKIPPED — HEAD $HEAD_SHA was already successfully deployed"
+            echo "has_changes=false" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          # Diff from last successfully deployed commit to catch all changes since
+          # that deploy, not just the most recent commit.
+          if git cat-file -e "$LAST_DEPLOYED_SHA" 2>/dev/null; then
+            echo "Diffing from last deployed SHA $LAST_DEPLOYED_SHA"
+            CHANGED=$(git diff --name-only "$LAST_DEPLOYED_SHA" HEAD 2>/dev/null \
+              || git show --name-only --format= HEAD)
+          else
+            echo "::warning::Last deployed SHA $LAST_DEPLOYED_SHA not in local history — deploying as a precaution"
+            echo "has_changes=true" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          echo "Changed files:"
+          echo "$CHANGED"
+
+          website_re='^(website/|scripts/website-verify\.sh|\.forgejo/workflows/website\.yml)'
+
+          if echo "$CHANGED" | grep -qE "$website_re"; then
+            echo "has_changes=true" >> "$GITHUB_OUTPUT"
+            echo "::notice::Website deploy TRIGGERED — website-relevant files changed since $LAST_DEPLOYED_SHA"
+          else
+            echo "has_changes=false" >> "$GITHUB_OUTPUT"
+            echo "::notice::Website deploy SKIPPED — diff $LAST_DEPLOYED_SHA..HEAD has no website-relevant changes"
+          fi
+
   deploy:
     name: Build & Update Website
     runs-on: ubuntu-latest
     timeout-minutes: 60
+    needs: [check-changes]
+    if: needs.check-changes.outputs.has_changes == 'true'
 
     steps:
       - name: Print runner wait time
@@ -24,21 +117,14 @@ jobs:
           RUN_NUMBER: ${{ github.run_number }}
         run: |
           runner_start=$(date +%s)
-          created_at=$(curl -sf \
+          created=$(curl -sf --max-time 30 \
             -H "Authorization: token $FORGEJO_TOKEN" \
-            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/tasks?limit=100" \
-            | python3 -c "
-import sys, json
-data = json.load(sys.stdin)
-for r in data.get('workflow_runs', []):
-    if r.get('run_number') == $RUN_NUMBER:
-        print(r['created_at'])
-        break
-" 2>/dev/null)
-          if [ -n "$created_at" ]; then
-            queued_epoch=$(date -d "$created_at" +%s)
+            "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/actions/runs?run_number=$RUN_NUMBER" \
+            | python3 -c "import sys,json;rs=json.load(sys.stdin).get('workflow_runs',[]);print(rs[0]['created'] if rs else '')" 2>/dev/null) || true
+          if [ -n "$created" ]; then
+            queued_epoch=$(date -d "$created" +%s)
             wait_seconds=$((runner_start - queued_epoch))
-            echo "Runner wait time: ${wait_seconds}s (queued at $created_at)"
+            echo "Runner wait time: ${wait_seconds}s (queued at $created)"
           else
             echo "Runner wait time: unknown (API lookup failed)"
           fi

.fvmrc

@@ -1,3 +1,3 @@
 {
   "flutter": "3.44.0"
-}
+}

.gitignore

@@ -123,3 +123,4 @@ dagger-certs
 /go
 .last_deployed_sha
 .fail_count
+/*.kubeconfig

.pre-commit-config.yaml

@@ -26,13 +26,13 @@ repos:
       - id: forbidden-files-hook
         name: check for forbidden home-directory files
         language: system
-        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && nix develop --command task check-hygiene'
+        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && task check-hygiene'
         pass_filenames: false
         always_run: true
       - id: dart-check
         name: dart format (autofix) + check-fast (parallel)
         language: system
-        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && nix develop --command dagger call --progress=plain -q -m ci --source=. check-fast'
+        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && dagger call --progress=plain -q -m ci --source=. check-fast'
         pass_filenames: false
         always_run: true
       - id: ci-no-direct-dagger
@@ -50,6 +50,12 @@ repos:
       - id: ci-image-exists
         name: verify container images in ci/main.go are reachable
         language: system
-        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && nix develop --command task check-ci-images'
+        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && task check-ci-images'
         pass_filenames: false
         files: ^(ci/main\.go|\.fvmrc)$
+      - id: dagger-versions-aligned
+        name: verify Dagger version is consistent across dagger.json, Dockerfile and DAGGER.md
+        language: system
+        entry: bash -c 'cd "$(git rev-parse --show-toplevel)" && scripts/check_dagger_versions.sh'
+        pass_filenames: false
+        files: ^(ci/dagger\.json|\.forgejo/Dockerfile|DAGGER\.md)$

AGENTS.md

@@ -13,23 +13,27 @@ Automation is handled by [agentloop](https://github.com/guettli/agentloop) runni
 | Label | Trigger | Outcome |
 |---|---|---|
 | `loop/plan` | Planning agent reads the issue and writes an implementation plan as a comment | Issue moves to `loop/plan-done` |
-| `loop/code` | Coding agent implements the change, creates a branch + PR | Issue moves to `loop/code-done` |
+| `loop/code` | Coding agent implements the change, creates a branch + PR | Issue routes to `loop/merge` |
+| `loop/merge` | Merge agent rebases, waits for CI, and merges the PR | Issue moves to `loop/merge-done` |
 
 **State machine:**
 
 ```
-loop/plan  →  loop/plan-in-progress  →  loop/plan-done
-                                      ↘  NeedSupervisor  (on failure)
+loop/plan  →  loop/plan-in-process  →  loop/plan-done
+                                     ↘  NeedSupervisor  (on failure)
 
-loop/code  →  loop/code-in-progress  →  loop/code-done
-                                      ↘  NeedSupervisor  (on failure)
+loop/code  →  loop/code-in-process  →  loop/merge (via route)
+                                     ↘  NeedSupervisor  (on failure)
+
+loop/merge →  loop/merge-in-process →  loop/merge-done
+                                     ↘  NeedSupervisor  (on failure)
 ```
 
 **Rules:**
 
 - Only issues authored by allowed users are picked up (guettli, guettlibot, guettlibot2, forgejo-actions).
 - An issue with `NeedSupervisor` needs human attention — investigate, fix, then re-label.
-- The coding agent opens a PR but does NOT close the issue. A human reviews the PR and closes the issue after merging.
+- The merge agent merges the PR automatically once CI is green. A human still reviews the PR before it merges if branch protection requires a review.
 - Planning agents only post a comment — they do NOT write code or open PRs.
 - `loop/*` labels are managed by agentloop — do not set them manually while an agent is active.
 
@@ -39,9 +43,9 @@ loop/code  →  loop/code-in-progress  →  loop/code-done
 1. Create issue
 2. Add label loop/plan   → agent writes plan as comment
 3. Review plan, request changes or approve
-4. Add label loop/code   → agent implements + opens PR
-5. Review PR, merge
-6. Close issue
+4. Add label loop/code   → agent implements + opens PR + hands off to merge
+5. (Optional) Review PR before it merges
+6. Merge agent waits for CI and merges the PR automatically
 ```
 
 ## Code conventions

Dockerfile.dev

@@ -0,0 +1,59 @@
+# Development and Testing Container for SharedInbox
+# Replaces the Nix shell environment.
+FROM ghcr.io/cirruslabs/flutter:3.44.0
+
+# Install Linux desktop build and test dependencies, Go, NodeJS, python3, and utilities
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    clang \
+    cmake \
+    ninja-build \
+    pkg-config \
+    libgtk-3-dev \
+    liblzma-dev \
+    libsecret-1-dev \
+    libgcrypt20-dev \
+    libjsoncpp-dev \
+    sqlite3 \
+    iproute2 \
+    netcat-openbsd \
+    xvfb \
+    libosmesa6 \
+    libegl1 \
+    lld \
+    git \
+    curl \
+    jq \
+    python3-pip \
+    nodejs \
+    npm \
+    hugo \
+    lcov \
+    rsync \
+    openssh-client \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Task runner
+RUN curl -fsSL https://taskfile.dev/install.sh \
+    | sh -s -- -b /usr/local/bin v3.48.0
+
+# Install Dagger CLI
+RUN curl -fsSL https://dl.dagger.io/dagger/install.sh \
+    | DAGGER_VERSION=0.20.8 BIN_DIR=/usr/local/bin sh
+
+# Install python packages (Play Store API clients + pre-commit)
+RUN pip install --break-system-packages --no-cache-dir \
+    google-api-python-client \
+    google-auth-httplib2 \
+    httplib2 \
+    pre-commit==4.5.1
+
+# Install acpx CLI globally
+RUN npm install -g acpx@0.10.0
+
+# Setup user "ci"
+RUN useradd -m -s /bin/bash ci
+USER ci
+ENV HOME=/home/ci
+ENV PATH=/home/ci/.pub-cache/bin:$PATH
+
+WORKDIR /src

Taskfile.yml

@@ -544,7 +544,7 @@ tasks:
       - sops exec-env secrets.enc.yaml 'bash scripts/build_android_bundle_local.sh'
 
   deploy-android-bundle:
-    desc: Build release AAB and upload to Play Store internal track (local/fvm)
+    desc: Build release AAB and upload to Play Store internal + closed-testing tracks (local/fvm)
     deps: [build-android-bundle-local]
     dotenv: [".env"]
     cmds:
@@ -712,6 +712,11 @@ tasks:
     cmds:
       - scripts/check_ci_images.sh
 
+  check-dagger-versions:
+    desc: Verify ci/dagger.json, flake.nix, .forgejo/Dockerfile and DAGGER.md pin the same Dagger version
+    cmds:
+      - scripts/check_dagger_versions.sh
+
   _integrations:
     internal: true
     run: once

agentloop-validation.txt

@@ -0,0 +1 @@
+Agentloop is working on sialoop!

ci/main.go

@@ -388,7 +388,7 @@ func (m *Ci) Stalwart() *dagger.Service {
 	return dag.Container().
 		From("stalwartlabs/stalwart:v0.14.1").
 		WithFile("/etc/stalwart/config.toml.orig", config).
-		WithExec([]string{"/bin/sh", "-c", "sed -e 's/hostname = \"localhost\"/hostname = \"stalwart\"/' -e 's/bind     = \\[\"0.0.0.0:\\([0-9]*\\)\"\\]/bind     = [\"0.0.0.0:\\1\", \"[::]:\\1\"]/g' /etc/stalwart/config.toml.orig > /etc/stalwart/config.toml"}).
+		WithExec([]string{"/bin/sh", "-c", "sed -e 's/hostname = \"localhost\"/hostname = \"stalwart\"/' /etc/stalwart/config.toml.orig > /etc/stalwart/config.toml"}).
 		WithDirectory("/tmp/stalwart", dataDir).
 		WithExposedPort(8080). // JMAP
 		WithExposedPort(1430). // IMAP
@@ -503,23 +503,19 @@ func (m *Ci) CheckFast(ctx context.Context) (string, error) {
 }
 
 // CheckGenerated verifies that all generated files (*.g.dart, *.mocks.dart) are up to date.
-// It snapshots the committed source (including any stale generated files) before
-// running build_runner, so git diff detects real staleness instead of always
-// comparing two freshly-generated outputs.
+// It reuses the codegenBase() output instead of running build_runner a second time,
+// diffing committed generated files against the freshly built ones.
 func (m *Ci) CheckGenerated(ctx context.Context) (string, error) {
+	fresh := m.codegenBase().Directory("/src")
 	return m.pubGetLayer().
-		WithDirectory("/src", m.checkSrc(), dagger.ContainerWithDirectoryOpts{Owner: "ci"}).
-		WithWorkdir("/src").
-		WithExec([]string{"git", "init"}).
-		WithExec([]string{"git", "config", "user.email", "ci@sharedinbox.de"}).
-		WithExec([]string{"git", "config", "user.name", "CI"}).
-		WithExec([]string{"git", "add", "."}).
-		WithExec([]string{"git", "commit", "-q", "-m", "baseline"}).
+		WithDirectory("/committed", m.checkSrc(), dagger.ContainerWithDirectoryOpts{Owner: "ci"}).
+		WithDirectory("/generated", fresh, dagger.ContainerWithDirectoryOpts{Owner: "ci"}).
 		WithExec([]string{"/bin/bash", "-c",
-			`tmp=$(mktemp); trap 'rm -f "$tmp"' EXIT; ` +
-				`flutter pub run build_runner build --delete-conflicting-outputs >"$tmp" 2>&1 || { cat "$tmp"; exit 1; }; ` +
-				`grep -vE '^\[.*s\] \|' "$tmp" || true`}).
-		WithExec([]string{"/bin/bash", "-c", "CHANGED=$(find . \\( -name '*.g.dart' -o -name '*.mocks.dart' \\) | xargs -r git diff --exit-code); if [ $? -ne 0 ]; then echo \"ERROR: Generated files are out of date — run: dart run build_runner build\"; exit 1; fi; echo \"Generated files are up to date.\""}).
+			`stale=$(find /committed -name '*.g.dart' -o -name '*.mocks.dart' | ` +
+				`while IFS= read -r f; do rel="${f#/committed/}"; diff -q "$f" "/generated/$rel" >/dev/null 2>&1 || echo "$rel"; done); ` +
+				`if [ -n "$stale" ]; then ` +
+				`echo "ERROR: Generated files are out of date — run: dart run build_runner build"; echo "$stale"; exit 1; ` +
+				`else echo "Generated files are up to date."; fi`}).
 		Stdout(ctx)
 }
 
@@ -539,7 +535,7 @@ func (m *Ci) TestBackend(ctx context.Context) (string, error) {
 	return m.WithStalwart(m.setup(m.backendSrc())).
 		WithExec([]string{"/bin/bash", "-c",
 			`tmp=$(mktemp); trap 'rm -f "$tmp"' EXIT; ` +
-				`flutter test --concurrency=1 --reporter expanded --no-pub test/backend >"$tmp" 2>&1 || { cat "$tmp"; exit 1; }; ` +
+				`flutter test --concurrency=1 --reporter expanded --no-pub --exclude-tags=nightly test/backend >"$tmp" 2>&1 || { cat "$tmp"; exit 1; }; ` +
 				`grep -E '^All [0-9]+ tests passed' "$tmp" || tail -1 "$tmp"`}).
 		Stdout(ctx)
 }
@@ -570,7 +566,7 @@ func (m *Ci) ChaosMonkeyBackend(ctx context.Context) (string, error) {
 	return m.WithStalwart(m.setup(m.backendSrc())).
 		WithExec([]string{"/bin/bash", "-c",
 			`tmp=$(mktemp); trap 'rm -f "$tmp"' EXIT; ` +
-				`flutter test test/backend/chaos_monkey_test.dart --reporter expanded --concurrency=1 --no-pub >"$tmp" 2>&1 || { cat "$tmp"; exit 1; }; ` +
+				`flutter test test/backend/chaos_monkey_test.dart --reporter expanded --concurrency=1 --no-pub --tags=nightly >"$tmp" 2>&1 || { cat "$tmp"; exit 1; }; ` +
 				`grep -E '^All [0-9]+ tests passed' "$tmp" || tail -1 "$tmp"`}).
 		Stdout(ctx)
 }
@@ -594,25 +590,33 @@ func (m *Ci) Check(ctx context.Context) (string, error) {
 		return "", err
 	}
 
-	checkSetup := m.setup(m.checkSrc())
-
-	if _, err := checkSetup.WithExec([]string{"dart", "format", "--output=none", "--set-exit-if-changed", "lib", "test"}).Stdout(ctx); err != nil {
-		return "Format check failed", err
-	}
-
-	analyze, err := checkSetup.WithExec([]string{"dart", "analyze", "--fatal-infos"}).Stdout(ctx)
-	if err != nil {
-		return analyze, err
-	}
-
-	mocks, err := m.CheckGenerated(ctx)
-	if err != nil {
-		return mocks, err
-	}
-
-	coverage, err := m.Coverage(ctx)
-	if err != nil {
-		return coverage, err
+	// Run format, analyze, generated-code check, and coverage in parallel —
+	// they all share the same setup base and have no dependencies on each other.
+	var analyze, mocks, coverage string
+	var checkEg errgroup.Group
+	checkEg.Go(func() error {
+		setup := m.setup(m.checkSrc())
+		_, err := setup.WithExec([]string{"dart", "format", "--output=none", "--set-exit-if-changed", "lib", "test"}).Stdout(ctx)
+		return err
+	})
+	checkEg.Go(func() error {
+		setup := m.setup(m.checkSrc())
+		var err error
+		analyze, err = setup.WithExec([]string{"dart", "analyze", "--fatal-infos"}).Stdout(ctx)
+		return err
+	})
+	checkEg.Go(func() error {
+		var err error
+		mocks, err = m.CheckGenerated(ctx)
+		return err
+	})
+	checkEg.Go(func() error {
+		var err error
+		coverage, err = m.Coverage(ctx)
+		return err
+	})
+	if err := checkEg.Wait(); err != nil {
+		return "", err
 	}
 
 	// Use errgroup.Group (not WithContext) so a failing test does not cancel its
@@ -810,7 +814,14 @@ func (m *Ci) DeployApk(
 // Returns a flat directory with app-debug.apk and app-debug-androidTest.apk.
 func (m *Ci) BuildAndroidDebugApks() *dagger.Directory {
 	built := m.firebaseBase().
-		WithExec([]string{"flutter", "build", "apk", "--debug", "--no-pub"}).
+		// `flutter build apk` spawns a Gradle daemon. When this WithExec ends the
+		// container is torn down and the daemon is killed, but its journal-cache
+		// lock file on the persistent gradle-cache volume keeps its dead PID — the
+		// next gradlew invocation then times out waiting for that lock. `gradlew
+		// --stop` shuts the daemon down gracefully so the lock is released before
+		// Dagger snapshots the layer.
+		WithExec([]string{"/bin/bash", "-c",
+			`flutter build apk --debug --no-pub && (cd android && ./gradlew --stop)`}).
 		WithWorkdir("/src/android").
 		// --no-daemon avoids connecting to a stale daemon whose registry file was
 		// preserved in the Dagger layer snapshot but whose process no longer exists.
@@ -892,7 +903,7 @@ func withGoCache(c *dagger.Container) *dagger.Container {
 		WithEnvVariable("GOMODCACHE", "/home/ci/go/pkg/mod")
 }
 
-// UploadToPlayStore uploads a pre-built AAB to the Play Store internal track.
+// UploadToPlayStore uploads a pre-built AAB to the Play Store internal and closed-testing (alpha) tracks.
 func (m *Ci) UploadToPlayStore(
 	ctx context.Context,
 	aab *dagger.File,

flake.lock

@@ -1,82 +0,0 @@
-{
-  "nodes": {
-    "dagger": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1778107833,
-        "narHash": "sha256-q5XQep2mpgTPiWwuYB1+L2dsFeACT6sHx8J939iM+HE=",
-        "owner": "dagger",
-        "repo": "nix",
-        "rev": "873cc22ba46b73d4a6c1aa6c102ef3aabc736496",
-        "type": "github"
-      },
-      "original": {
-        "owner": "dagger",
-        "repo": "nix",
-        "type": "github"
-      }
-    },
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1778737229,
-        "narHash": "sha256-6xWoytx8jFW4PF1GjRm/i/53trbpKGfz6zjzQGBr4cI=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "d7a713c0b7e47c908258e71cba7a2d77cc8d71d5",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-25.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "root": {
-      "inputs": {
-        "dagger": "dagger",
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}

flake.nix

@@ -1,164 +0,0 @@
-{
-  description = "SharedInbox — IMAP/SMTP Flutter client";
-
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
-    flake-utils.url = "github:numtide/flake-utils";
-    dagger.url = "github:dagger/nix";
-    dagger.inputs.nixpkgs.follows = "nixpkgs";
-  };
-
-  outputs = { self, nixpkgs, flake-utils, dagger }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        pkgs = nixpkgs.legacyPackages.${system};
-
-        # All Linux desktop runtime libraries needed by flutter build linux and
-        # the UI integration tests (xvfb-run).  Kept as a list so we can reuse
-        # it for both buildInputs and LD_LIBRARY_PATH / PKG_CONFIG_PATH.
-        linuxDesktopLibs = with pkgs; [
-          gtk3
-          libsecret
-          fontconfig
-          libepoxy
-          mesa
-          libGL        # libglvnd — vendor-neutral GL/EGL/GLX dispatch layer
-          at-spi2-core
-          glib
-          pango
-          cairo
-          gdk-pixbuf
-          harfbuzz
-        # Dagger remote setup dependencies
-        stunnel
-        netcat
-        ];
-
-        fgj = pkgs.stdenv.mkDerivation {
-          pname = "fgj";
-          version = "0.4.0";
-          src = pkgs.fetchurl {
-            url = "https://codeberg.org/romaintb/fgj/releases/download/v0.4.0/fgj_linux_amd64";
-            sha256 = "07pia03facvvxq9i1dgl7p47ccv1iqj4drpkp45gvw26d4afkbj7";
-          };
-          dontUnpack = true;
-          installPhase = ''
-            mkdir -p $out/bin
-            cp $src $out/bin/fgj
-            chmod +x $out/bin/fgj
-          '';
-        };
-
-        # The dagger/nix flake pins 0.20.8, whose Nix wrapper is a broken self-exec
-        # loop.  Fetch 0.21.4 directly so the pre-commit dart-check hook can run.
-        dagger021 = pkgs.stdenv.mkDerivation {
-          pname = "dagger";
-          version = "0.21.4";
-          src = pkgs.fetchurl {
-            url = "https://dl.dagger.io/dagger/releases/0.21.4/dagger_v0.21.4_linux_amd64.tar.gz";
-            sha256 = "0wlnbr4g5069755131yjp2a6alacn64f1c8b27xn0cbynq3zicjd";
-          };
-          sourceRoot = ".";
-          installPhase = ''
-            mkdir -p $out/bin
-            cp dagger $out/bin/dagger
-            chmod +x $out/bin/dagger
-          '';
-        };
-      in {
-        devShells.default = pkgs.mkShell {
-          buildInputs = with pkgs; [
-            # Dagger CLI
-            dagger021
-
-            # Go compiler — for Dagger development
-            go
-
-            # Java JDK — required by Gradle for Android builds
-
-            # Task runner
-            go-task
-
-            # Flutter version manager — needed for host builds (task build-linux, task run)
-            fvm
-
-            # Git hooks
-            pre-commit
-
-            # Linux desktop build + runtime dependencies (flutter build linux / task run)
-          ] ++ linuxDesktopLibs ++ (with pkgs; [
-            pkg-config
-            clang
-            cmake
-            ninja
-
-            # Local IMAP/SMTP dev server for integration tests
-            stalwart-mail
-
-            # Headless display for UI integration tests
-            xvfb-run          # wraps Xvfb; xvfb-run --auto-servernum ...
-
-            # Coverage merging (flutter test --merge-coverage requires lcov)
-            lcov
-
-            # Website
-            hugo
-
-            # Utilities
-            git
-            curl
-            jq
-            sqlite
-            # python3 base + Google Play API client (for scripts/deploy_playstore.py)
-            (python3.withPackages (ps: with ps; [
-              google-api-python-client
-              google-auth-httplib2
-              httplib2
-            ]))  # used by stalwart-dev/start and deploy_playstore.py
-            fgj      # Codeberg/Forgejo CLI (like gh for GitHub)
-            skopeo   # inspect OCI image manifests without pulling layers (used by check-ci-images)
-            librsvg  # rsvg-convert — SVG→PNG for generate-icons task
-          ]);
-
-          shellHook = ''
-            # nix develop --command does not set IN_NIX_SHELL; set it so _preflight passes in CI
-            export IN_NIX_SHELL=1
-
-            # Point Dagger client at the running engine socket
-            export DAGGER_HOST=unix:///run/dagger/engine.sock
-
-            # Disable Flutter telemetry inside dev shell
-            export FLUTTER_SUPPRESS_ANALYTICS=true
-
-            # Expose dev headers to cmake's FindPkgConfig.
-            # The nix pkg-config wrapper works in bash but cmake invokes pkg-config
-            # as a subprocess and needs PKG_CONFIG_PATH set explicitly.
-            export PKG_CONFIG_PATH="${pkgs.gtk3.dev}/lib/pkgconfig:${pkgs.glib.dev}/lib/pkgconfig:${pkgs.pango.dev}/lib/pkgconfig:${pkgs.cairo.dev}/lib/pkgconfig:${pkgs.gdk-pixbuf.dev}/lib/pkgconfig:${pkgs.at-spi2-core.dev}/lib/pkgconfig:${pkgs.harfbuzz.dev}/lib/pkgconfig:${pkgs.libsecret}/lib/pkgconfig:${pkgs.fontconfig.dev}/lib/pkgconfig:${pkgs.libepoxy}/lib/pkgconfig:$PKG_CONFIG_PATH"
-
-            # Nix ld uses --no-copy-dt-needed-entries (strict mode): transitive shared-lib
-            # deps are not followed automatically, so link them explicitly.
-            export LDFLAGS="-L${pkgs.fontconfig.lib}/lib -lfontconfig $LDFLAGS"
-
-            # Make nix-built runtime libs visible to the dynamic linker so the
-            # Flutter Linux bundle and integration-ui tests can run.
-            export LD_LIBRARY_PATH="${pkgs.lib.makeLibraryPath linuxDesktopLibs}:$LD_LIBRARY_PATH"
-
-            # Wire the libglvnd dispatch to the nix mesa vendor ICDs so GTK/Flutter
-            # can create an OpenGL (EGL + GLX) context under Xvfb without a real GPU.
-            export __EGL_VENDOR_LIBRARY_DIRS="${pkgs.mesa}/share/glvnd/egl_vendor.d"
-            export __GLX_VENDOR_LIBRARY_DIRS="${pkgs.mesa}/lib"
-            export LIBGL_ALWAYS_SOFTWARE=1
-            export MESA_LOADER_DRIVER_OVERRIDE=softpipe
-
-            echo "SharedInbox Flutter dev environment ready."
-            echo "  Analyze        : task analyze"
-            echo "  Unit tests     : task test"
-            echo "  Integration    : task integration"
-            echo "  All checks     : task check"
-            echo "  Run (Linux)    : task run"
-            echo "  Start Stalwart : stalwart-dev/start"
-          '';
-        };
-      }
-    );
-}

lib/core/db_schema_version.dart

@@ -1 +1 @@
-const int dbSchemaVersion = 40;
+const int dbSchemaVersion = 41;

lib/core/filter/filter_expression.dart

@@ -0,0 +1,88 @@
+enum FilterField {
+  from_,
+  to,
+  cc,
+  subject,
+  size;
+
+  String get label => switch (this) {
+        FilterField.from_ => 'From',
+        FilterField.to => 'To',
+        FilterField.cc => 'CC',
+        FilterField.subject => 'Subject',
+        FilterField.size => 'Size (bytes)',
+      };
+
+  List<FilterComparison> get allowedComparisons => switch (this) {
+        FilterField.size => [FilterComparison.over, FilterComparison.under],
+        _ => [
+            FilterComparison.contains,
+            FilterComparison.is_,
+            FilterComparison.matches,
+          ],
+      };
+}
+
+enum FilterComparison {
+  contains,
+  is_,
+  matches,
+  over,
+  under;
+
+  String get label => switch (this) {
+        FilterComparison.contains => 'contains',
+        FilterComparison.is_ => 'is',
+        FilterComparison.matches => 'matches',
+        FilterComparison.over => 'over',
+        FilterComparison.under => 'under',
+      };
+}
+
+enum FilterOperator { and_, or_ }
+
+sealed class FilterNode {}
+
+final class FilterLeaf extends FilterNode {
+  FilterLeaf({
+    required this.field,
+    required this.comparison,
+    required this.value,
+  });
+
+  final FilterField field;
+  final FilterComparison comparison;
+  final String value;
+
+  FilterLeaf copyWith({
+    FilterField? field,
+    FilterComparison? comparison,
+    String? value,
+  }) =>
+      FilterLeaf(
+        field: field ?? this.field,
+        comparison: comparison ?? this.comparison,
+        value: value ?? this.value,
+      );
+}
+
+final class FilterGroup extends FilterNode {
+  FilterGroup({required this.operator, required this.children});
+
+  final FilterOperator operator;
+  final List<FilterNode> children;
+
+  bool get isEmpty => children.isEmpty;
+
+  FilterGroup copyWith({
+    FilterOperator? operator,
+    List<FilterNode>? children,
+  }) =>
+      FilterGroup(
+        operator: operator ?? this.operator,
+        children: children ?? this.children,
+      );
+
+  static FilterGroup empty() =>
+      FilterGroup(operator: FilterOperator.and_, children: []);
+}

lib/core/filter/filter_sieve_converter.dart

@@ -0,0 +1,358 @@
+import 'package:sharedinbox/core/filter/filter_expression.dart';
+import 'package:sharedinbox/core/sieve/sieve_actions.dart';
+
+/// Converts a Sieve script (RFC 5228 subset) to a [FilterGroup] + actions,
+/// suitable for display in the visual filter editor.
+///
+/// Returns null if the script uses features outside the supported subset.
+class FilterSieveConverter {
+  ({FilterGroup group, List<SieveAction> actions})? parse(String script) {
+    try {
+      final s = _Sc(script);
+      s.skip();
+      if (s.peekWord() == 'require') {
+        s.readWord();
+        s.skip();
+        _parseStringOrList(s);
+        s.skip();
+        s.expectChar(';');
+        s.skip();
+      }
+      if (s.peekWord() != 'if') return null;
+      s.readWord();
+      s.skip();
+      final node = _parseTest(s);
+      if (node == null) return null;
+      s.skip();
+      s.expectChar('{');
+      s.skip();
+      final actions = <SieveAction>[];
+      while (s.peek() != '}' && !s.isAtEnd) {
+        final action = _parseAction(s);
+        if (action == null) return null;
+        actions.add(action);
+        s.skip();
+      }
+      s.expectChar('}');
+      final group = switch (node) {
+        final FilterGroup g => g,
+        final FilterLeaf l =>
+          FilterGroup(operator: FilterOperator.and_, children: [l]),
+      };
+      return (group: group, actions: actions);
+    } catch (_) {
+      return null;
+    }
+  }
+
+  FilterNode? _parseTest(_Sc s) {
+    s.skip();
+    final word = s.peekWord()?.toLowerCase();
+    if (word == null) return null;
+    if (word == 'allof' || word == 'anyof') {
+      s.readWord();
+      s.skip();
+      s.expectChar('(');
+      final op = word == 'allof' ? FilterOperator.and_ : FilterOperator.or_;
+      final children = <FilterNode>[];
+      while (true) {
+        s.skip();
+        if (s.peek() == ')') break;
+        final child = _parseTest(s);
+        if (child == null) return null;
+        children.add(child);
+        s.skip();
+        if (s.peek() == ',') s.advance();
+      }
+      s.expectChar(')');
+      return FilterGroup(operator: op, children: children);
+    }
+    return _parseSingleTest(s);
+  }
+
+  FilterLeaf? _parseSingleTest(_Sc s) {
+    s.skip();
+    final word = s.peekWord()?.toLowerCase();
+    if (word == null) return null;
+
+    if (word == 'address') {
+      s.readWord();
+      s.skip();
+      final matchType = s.readTaggedArg();
+      s.skip();
+      final headers = _parseStringOrList(s);
+      s.skip();
+      final values = _parseStringOrList(s);
+      final field = switch (headers.firstOrNull?.toLowerCase()) {
+        'from' => FilterField.from_,
+        'to' => FilterField.to,
+        'cc' => FilterField.cc,
+        _ => null,
+      };
+      if (field == null) return null;
+      final comp = _comp(matchType);
+      if (comp == null) return null;
+      return FilterLeaf(
+        field: field,
+        comparison: comp,
+        value: values.firstOrNull ?? '',
+      );
+    }
+
+    if (word == 'header') {
+      s.readWord();
+      s.skip();
+      final matchType = s.readTaggedArg();
+      s.skip();
+      final headers = _parseStringOrList(s);
+      s.skip();
+      final values = _parseStringOrList(s);
+      if (headers.firstOrNull?.toLowerCase() != 'subject') return null;
+      final comp = _comp(matchType);
+      if (comp == null) return null;
+      return FilterLeaf(
+        field: FilterField.subject,
+        comparison: comp,
+        value: values.firstOrNull ?? '',
+      );
+    }
+
+    if (word == 'size') {
+      s.readWord();
+      s.skip();
+      final compTag = s.readTaggedArg();
+      s.skip();
+      final numStr = s.readDigits();
+      final comp = switch (compTag.toLowerCase()) {
+        ':over' => FilterComparison.over,
+        ':under' => FilterComparison.under,
+        _ => null,
+      };
+      if (comp == null) return null;
+      return FilterLeaf(
+        field: FilterField.size,
+        comparison: comp,
+        value: numStr,
+      );
+    }
+
+    return null;
+  }
+
+  FilterComparison? _comp(String tag) => switch (tag.toLowerCase()) {
+        ':contains' => FilterComparison.contains,
+        ':is' => FilterComparison.is_,
+        ':matches' => FilterComparison.matches,
+        _ => null,
+      };
+
+  SieveAction? _parseAction(_Sc s) {
+    s.skip();
+    final word = s.peekWord()?.toLowerCase();
+    if (word == null) return null;
+    if (word == 'fileinto') {
+      s.readWord();
+      s.skip();
+      final folder = _parseString(s);
+      s.skip();
+      s.expectChar(';');
+      return FileIntoAction(folder);
+    }
+    if (word == 'keep') {
+      s.readWord();
+      s.skip();
+      s.expectChar(';');
+      return KeepAction();
+    }
+    if (word == 'discard') {
+      s.readWord();
+      s.skip();
+      s.expectChar(';');
+      return DiscardAction();
+    }
+    if (word == 'setflag' || word == 'addflag') {
+      s.readWord();
+      s.skip();
+      final flags = _parseStringOrList(s);
+      s.skip();
+      s.expectChar(';');
+      if (flags.any(
+        (f) => f.toLowerCase() == r'\seen' || f.toLowerCase() == r'\\seen',
+      )) {
+        return MarkAsSeenAction();
+      }
+      return FlagAction(flags);
+    }
+    return null;
+  }
+
+  List<String> _parseStringOrList(_Sc s) {
+    s.skip();
+    if (s.peek() == '[') {
+      s.advance();
+      final items = <String>[];
+      while (true) {
+        s.skip();
+        if (s.peek() == ']') {
+          s.advance();
+          break;
+        }
+        items.add(_parseString(s));
+        s.skip();
+        if (s.peek() == ',') s.advance();
+      }
+      return items;
+    }
+    return [_parseString(s)];
+  }
+
+  String _parseString(_Sc s) {
+    s.skip();
+    return s.readQuotedString();
+  }
+}
+
+// Minimal scanner for the supported Sieve subset.
+class _Sc {
+  _Sc(this._src);
+  final String _src;
+  int _pos = 0;
+
+  bool get isAtEnd => _pos >= _src.length;
+  String? peek() => isAtEnd ? null : _src[_pos];
+
+  String advance() {
+    if (isAtEnd) throw _ScanErr('Unexpected end');
+    return _src[_pos++];
+  }
+
+  void skip() {
+    while (!isAtEnd) {
+      final ch = _src[_pos];
+      if (ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n') {
+        _pos++;
+      } else if (ch == '#') {
+        while (!isAtEnd && _src[_pos] != '\n') {
+          _pos++;
+        }
+      } else if (_pos + 1 < _src.length && ch == '/' && _src[_pos + 1] == '*') {
+        _pos += 2;
+        while (_pos + 1 < _src.length) {
+          if (_src[_pos] == '*' && _src[_pos + 1] == '/') {
+            _pos += 2;
+            break;
+          }
+          _pos++;
+        }
+      } else {
+        break;
+      }
+    }
+  }
+
+  String? peekWord() {
+    if (isAtEnd) return null;
+    final ch = _src[_pos];
+    if ('{}();[],'.contains(ch)) return ch;
+    if (ch == ':') {
+      var end = _pos + 1;
+      while (end < _src.length && _wc(_src[end])) {
+        end++;
+      }
+      return _src.substring(_pos, end).toLowerCase();
+    }
+    if (_wc(ch)) {
+      var end = _pos + 1;
+      while (end < _src.length && _wc(_src[end])) {
+        end++;
+      }
+      return _src.substring(_pos, end).toLowerCase();
+    }
+    return null;
+  }
+
+  String readWord() {
+    final start = _pos;
+    final ch = _src[_pos];
+    if ('{}();[],'.contains(ch)) {
+      _pos++;
+      return ch;
+    }
+    if (ch == ':') {
+      _pos++;
+      while (!isAtEnd && _wc(_src[_pos])) {
+        _pos++;
+      }
+    } else {
+      while (!isAtEnd && _wc(_src[_pos])) {
+        _pos++;
+      }
+    }
+    return _src.substring(start, _pos).toLowerCase();
+  }
+
+  String readTaggedArg() {
+    if (!isAtEnd && _src[_pos] == ':') return readWord();
+    throw _ScanErr('Expected tagged arg at $_pos');
+  }
+
+  String readDigits() {
+    final start = _pos;
+    while (!isAtEnd && _dig(_src[_pos])) {
+      _pos++;
+    }
+    if (_pos == start) throw _ScanErr('Expected digits at $_pos');
+    return _src.substring(start, _pos);
+  }
+
+  String readQuotedString() {
+    if (isAtEnd || _src[_pos] != '"') throw _ScanErr('Expected " at $_pos');
+    _pos++;
+    final buf = StringBuffer();
+    while (!isAtEnd) {
+      final ch = _src[_pos];
+      if (ch == '"') {
+        _pos++;
+        return buf.toString();
+      }
+      if (ch == '\\' && _pos + 1 < _src.length) {
+        _pos++;
+        buf.write(_src[_pos]);
+        _pos++;
+      } else {
+        buf.write(ch);
+        _pos++;
+      }
+    }
+    throw _ScanErr('Unterminated string');
+  }
+
+  void expectChar(String ch) {
+    skip();
+    if (isAtEnd || _src[_pos] != ch) {
+      throw _ScanErr(
+        'Expected "$ch" at $_pos, got ${isAtEnd ? "EOF" : _src[_pos]}',
+      );
+    }
+    _pos++;
+  }
+
+  static bool _wc(String ch) {
+    final c = ch.codeUnitAt(0);
+    return (c >= 0x41 && c <= 0x5A) ||
+        (c >= 0x61 && c <= 0x7A) ||
+        (c >= 0x30 && c <= 0x39) ||
+        c == 0x5F ||
+        c == 0x2D;
+  }
+
+  static bool _dig(String ch) {
+    final c = ch.codeUnitAt(0);
+    return c >= 0x30 && c <= 0x39;
+  }
+}
+
+class _ScanErr implements Exception {
+  _ScanErr(this.message);
+  final String message;
+}

lib/core/repositories/email_repository.dart

@@ -1,3 +1,4 @@
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/email.dart';
 
 abstract class EmailRepository {
@@ -61,6 +62,12 @@ abstract class EmailRepository {
   /// if null) by subject, preview, and notes. Fast, works offline.
   Future<List<Email>> searchEmailsGlobal(String? accountId, String query);
 
+  /// Searches the local DB using a structured [FilterGroup]. Fast, works offline.
+  Future<List<Email>> searchEmailsStructured(
+    String? accountId,
+    FilterGroup filter,
+  );
+
   /// Returns all locally cached emails in any mailbox of [accountId] (or all
   /// accounts if null) whose from, to, or cc fields contain [address].
   Future<List<Email>> getEmailsByAddress(String? accountId, String address);

lib/core/sieve/sieve_interpreter.dart

@@ -1,6 +1,7 @@
 import 'package:sharedinbox/core/sieve/sieve_actions.dart';
 import 'package:sharedinbox/core/sieve/sieve_conditions.dart';
 import 'package:sharedinbox/core/sieve/sieve_rule.dart';
+import 'package:sharedinbox/core/utils/glob_match.dart';
 
 /// A lightweight email representation used by [SieveInterpreter].
 /// Header names are lower-cased.
@@ -102,18 +103,11 @@ class SieveInterpreter {
     return switch (matchType) {
       ':contains' => k.isEmpty || v.contains(k),
       ':is' => v == k,
-      ':matches' => _globMatch(v, k),
+      ':matches' => globMatch(v, k),
       _ => false,
     };
   }
 
-  bool _globMatch(String value, String pattern) {
-    final regexStr = RegExp.escape(
-      pattern,
-    ).replaceAll(r'\*', '.*').replaceAll(r'\?', '.');
-    return RegExp('^$regexStr\$').hasMatch(value);
-  }
-
   void _applyActions(List<SieveAction> actions, SieveExecutionContext ctx) {
     for (final action in actions) {
       switch (action) {

lib/core/sieve/sieve_serializer.dart

@@ -0,0 +1,100 @@
+import 'package:sharedinbox/core/filter/filter_expression.dart';
+import 'package:sharedinbox/core/sieve/sieve_actions.dart';
+
+/// Serialises a [FilterGroup] + list of [SieveAction]s to a Sieve script
+/// (RFC 5228 subset).
+class SieveSerializer {
+  String serialize(FilterGroup filter, List<SieveAction> actions) {
+    final buf = StringBuffer();
+    final requires = _collectRequires(actions);
+    if (requires.isNotEmpty) {
+      buf.writeln(
+        'require [${requires.map((r) => '"$r"').join(', ')}];',
+      );
+    }
+    if (filter.isEmpty) {
+      for (final a in actions) {
+        buf.writeln(_serializeAction(a));
+      }
+      return buf.toString();
+    }
+    buf.write('if ');
+    buf.write(_serializeNode(filter));
+    buf.writeln(' {');
+    for (final a in actions) {
+      buf.writeln('    ${_serializeAction(a)}');
+    }
+    buf.writeln('}');
+    return buf.toString();
+  }
+
+  List<String> _collectRequires(List<SieveAction> actions) {
+    final req = <String>[];
+    for (final a in actions) {
+      if (a is FileIntoAction && !req.contains('fileinto')) req.add('fileinto');
+      if ((a is FlagAction || a is MarkAsSeenAction) &&
+          !req.contains('imap4flags')) {
+        req.add('imap4flags');
+      }
+    }
+    return req;
+  }
+
+  String _serializeNode(FilterNode node) => switch (node) {
+        final FilterLeaf leaf => _serializeLeaf(leaf),
+        final FilterGroup group => _serializeGroup(group),
+      };
+
+  String _serializeGroup(FilterGroup group) {
+    if (group.isEmpty) return 'true';
+    if (group.children.length == 1) return _serializeNode(group.children.first);
+    final op = group.operator == FilterOperator.and_ ? 'allof' : 'anyof';
+    final parts = group.children.map(_serializeNode).join(',\n    ');
+    return '$op(\n    $parts\n)';
+  }
+
+  String _serializeLeaf(FilterLeaf leaf) => switch (leaf.field) {
+        FilterField.from_ ||
+        FilterField.to ||
+        FilterField.cc =>
+          _serializeAddressLeaf(leaf),
+        FilterField.subject => _serializeHeaderLeaf(leaf),
+        FilterField.size => _serializeSizeLeaf(leaf),
+      };
+
+  String _serializeAddressLeaf(FilterLeaf leaf) {
+    final header = switch (leaf.field) {
+      FilterField.from_ => 'from',
+      FilterField.to => 'to',
+      FilterField.cc => 'cc',
+      _ => throw StateError('not an address field'),
+    };
+    return 'address ${_matchType(leaf.comparison)} "$header" "${_esc(leaf.value)}"';
+  }
+
+  String _serializeHeaderLeaf(FilterLeaf leaf) =>
+      'header ${_matchType(leaf.comparison)} "subject" "${_esc(leaf.value)}"';
+
+  String _serializeSizeLeaf(FilterLeaf leaf) {
+    final comp = leaf.comparison == FilterComparison.over ? ':over' : ':under';
+    return 'size $comp ${leaf.value}';
+  }
+
+  String _matchType(FilterComparison comp) => switch (comp) {
+        FilterComparison.contains => ':contains',
+        FilterComparison.is_ => ':is',
+        FilterComparison.matches => ':matches',
+        _ => ':contains',
+      };
+
+  String _serializeAction(SieveAction action) => switch (action) {
+        final FileIntoAction a => 'fileinto "${_esc(a.folder)}";',
+        KeepAction() => 'keep;',
+        DiscardAction() => 'discard;',
+        MarkAsSeenAction() => r'setflag "\\Seen";',
+        final FlagAction a =>
+          'addflag [${a.flags.map((f) => '"${_esc(f)}"').join(', ')}];',
+      };
+
+  String _esc(String s) => s.replaceAll(r'\', r'\\').replaceAll('"', r'\"');
+}

lib/core/utils/glob_match.dart

@@ -0,0 +1,9 @@
+/// Returns true if [value] matches the glob [pattern].
+///
+/// Supports `*` (any number of characters) and `?` (exactly one character).
+/// The comparison is case-insensitive, which is appropriate for email addresses.
+bool globMatch(String value, String pattern) {
+  final regexStr =
+      RegExp.escape(pattern).replaceAll(r'\*', '.*').replaceAll(r'\?', '.');
+  return RegExp('^$regexStr\$', caseSensitive: false).hasMatch(value);
+}

lib/data/db/database.dart

@@ -679,6 +679,116 @@ class AppDatabase extends _$AppDatabase {
           if (from < 40) {
             await m.createTable(installedVersions);
           }
+          if (from < 41) {
+            // Fix IMAP email IDs to include mailboxPath, preventing UID
+            // collisions across mailboxes (IMAP UIDs are mailbox-scoped).
+            // New format: "accountId:mailboxPath:uid" (was "accountId:uid").
+            //
+            // defer_foreign_keys defers the email_bodies→emails FK check
+            // to COMMIT so the two tables can be updated sequentially inside
+            // the migration transaction without a transient FK violation.
+            await customStatement('PRAGMA defer_foreign_keys = ON');
+
+            // 1. Remap email_bodies.email_id before emails.id changes.
+            await customStatement('''
+              UPDATE email_bodies
+              SET email_id = (
+                SELECT e.account_id || ':' || e.mailbox_path || ':' || CAST(e.uid AS TEXT)
+                FROM emails e
+                JOIN accounts a ON a.id = e.account_id
+                WHERE e.id = email_bodies.email_id
+                  AND a.account_type = 'imap'
+              )
+              WHERE EXISTS (
+                SELECT 1 FROM emails e
+                JOIN accounts a ON a.id = e.account_id
+                WHERE e.id = email_bodies.email_id
+                  AND a.account_type = 'imap'
+              )
+            ''');
+
+            // 2. Update emails.thread_id where it was set to the email's own
+            //    id (fallback for messages with no Message-ID header).
+            await customStatement('''
+              UPDATE emails
+              SET thread_id = account_id || ':' || mailbox_path || ':' || CAST(uid AS TEXT)
+              WHERE account_id IN (SELECT id FROM accounts WHERE account_type = 'imap')
+                AND thread_id = id
+            ''');
+
+            // 3. Update the primary key on emails.
+            await customStatement('''
+              UPDATE emails
+              SET id = account_id || ':' || mailbox_path || ':' || CAST(uid AS TEXT)
+              WHERE account_id IN (
+                SELECT id FROM accounts WHERE account_type = 'imap'
+              )
+            ''');
+
+            // 5. Rebuild threads for IMAP accounts from the updated email rows.
+            //    The threads table stores denormalised data (latest_email_id,
+            //    email_ids_json) that references email IDs, so it is simpler to
+            //    delete and reconstruct than to patch the JSON in SQL.
+            await customStatement('''
+              DELETE FROM threads
+              WHERE account_id IN (SELECT id FROM accounts WHERE account_type = 'imap')
+            ''');
+
+            final imapAccounts = await (select(accounts)
+                  ..where((t) => t.accountType.equals('imap')))
+                .get();
+            for (final acct in imapAccounts) {
+              final emailRows = await (select(emails)
+                    ..where((t) => t.accountId.equals(acct.id)))
+                  .get();
+
+              final groups = <String, List<Email>>{};
+              for (final row in emailRows) {
+                final key = '${row.mailboxPath}:${row.threadId ?? row.id}';
+                groups.putIfAbsent(key, () => []).add(row);
+              }
+
+              for (final threadEmails in groups.values) {
+                threadEmails.sort((a, b) {
+                  final da = a.sentAt ?? a.receivedAt;
+                  final db = b.sentAt ?? b.receivedAt;
+                  return da.compareTo(db);
+                });
+                final latest = threadEmails.last;
+
+                final seen = <String>{};
+                final participants = <Map<String, dynamic>>[];
+                for (final e in threadEmails) {
+                  final from = jsonDecode(e.fromJson) as List<dynamic>;
+                  for (final a in from.cast<Map<String, dynamic>>()) {
+                    final email = a['email'] as String;
+                    if (seen.add(email)) {
+                      participants.add({'name': a['name'], 'email': email});
+                    }
+                  }
+                }
+
+                await into(threads).insert(
+                  ThreadsCompanion.insert(
+                    id: latest.threadId ?? latest.id,
+                    accountId: latest.accountId,
+                    mailboxPath: latest.mailboxPath,
+                    subject: Value(latest.subject),
+                    latestDate: latest.sentAt ?? latest.receivedAt,
+                    messageCount: Value(threadEmails.length),
+                    hasUnread: Value(threadEmails.any((e) => !e.isSeen)),
+                    isFlagged: Value(threadEmails.any((e) => e.isFlagged)),
+                    participantsJson: Value(jsonEncode(participants)),
+                    preview: Value(latest.preview),
+                    latestEmailId: latest.id,
+                    emailIdsJson: Value(
+                      jsonEncode(threadEmails.map((e) => e.id).toList()),
+                    ),
+                  ),
+                );
+              }
+            }
+          }
         },
       );
 

lib/data/repositories/email_repository_impl.dart

@@ -9,6 +9,7 @@ import 'package:http/http.dart' as http;
 import 'package:path/path.dart' as p;
 import 'package:path_provider/path_provider.dart';
 
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/account.dart' as account_model;
 import 'package:sharedinbox/core/models/email.dart' as model;
 import 'package:sharedinbox/core/repositories/account_repository.dart';
@@ -560,7 +561,7 @@ class EmailRepositoryImpl implements EmailRepository {
     for (final msg in result.messages) {
       final uid = msg.uid;
       if (uid == null) continue;
-      final emailId = '${account.id}:$uid';
+      final emailId = '${account.id}:$mailboxPath:$uid';
       await (_db.update(_db.emails)..where((t) => t.id.equals(emailId))).write(
         EmailsCompanion(
           isSeen: Value(msg.flags?.contains(r'\Seen') ?? false),
@@ -615,7 +616,7 @@ class EmailRepositoryImpl implements EmailRepository {
           continue;
         }
         bytes += msg.size ?? 0;
-        final emailId = '${account.id}:$uid';
+        final emailId = '${account.id}:$mailboxPath:$uid';
         final msgId = envelope.messageId?.trim();
         final inReplyTo = envelope.inReplyTo?.trim();
         final refs = msg.getHeaderValue('References')?.trim();
@@ -2922,9 +2923,9 @@ class EmailRepositoryImpl implements EmailRepository {
 
     final sql = accountId != null
         ? 'SELECT e.* FROM email_fts f JOIN emails e ON e.rowid = f.rowid'
-            ' WHERE email_fts MATCH ? AND e.account_id = ? ORDER BY rank LIMIT 50'
+            ' WHERE email_fts MATCH ? AND e.account_id = ? ORDER BY e.received_at DESC LIMIT 50'
         : 'SELECT e.* FROM email_fts f JOIN emails e ON e.rowid = f.rowid'
-            ' WHERE email_fts MATCH ? ORDER BY rank LIMIT 50';
+            ' WHERE email_fts MATCH ? ORDER BY e.received_at DESC LIMIT 50';
     final variables = accountId != null
         ? [Variable<String>(ftsQuery), Variable<String>(accountId)]
         : [Variable<String>(ftsQuery)];
@@ -2942,6 +2943,7 @@ class EmailRepositoryImpl implements EmailRepository {
     for (final e in [...emailRows.map(_toModel), ...noteRows]) {
       if (seen.add(e.id)) merged.add(e);
     }
+    merged.sort((a, b) => b.receivedAt.compareTo(a.receivedAt));
     return merged;
   }
 
@@ -2952,16 +2954,12 @@ class EmailRepositoryImpl implements EmailRepository {
     String? mailboxPath,
     String query,
   ) async {
-    final words = query
-        .trim()
-        .split(RegExp(r'\s+'))
-        .where((w) => w.isNotEmpty)
-        .toList();
+    final words =
+        query.trim().split(RegExp(r'\s+')).where((w) => w.isNotEmpty).toList();
     if (words.isEmpty) return [];
 
     final noteConditions = words.map((_) => 'n.note_text LIKE ?').join(' AND ');
-    final likeVars =
-        words.map((w) => Variable<String>('%$w%')).toList();
+    final likeVars = words.map((w) => Variable<String>('%$w%')).toList();
 
     final extraConditions = StringBuffer();
     final extraVars = <Variable<String>>[];
@@ -2980,26 +2978,108 @@ class EmailRepositoryImpl implements EmailRepository {
         ' WHERE $noteConditions$extraConditions'
         ' ORDER BY e.received_at DESC LIMIT 50';
 
-    final rows = await _db
-        .customSelect(
-          sql,
-          variables: [...likeVars, ...extraVars],
-          readsFrom: {_db.emails, _db.emailNotes},
-        )
-        .get();
-    final emailRows = await Future.wait(rows.map((r) => _db.emails.mapFromRow(r)));
+    final rows = await _db.customSelect(
+      sql,
+      variables: [...likeVars, ...extraVars],
+      readsFrom: {_db.emails, _db.emailNotes},
+    ).get();
+    final emailRows =
+        await Future.wait(rows.map((r) => _db.emails.mapFromRow(r)));
     return emailRows.map(_toModel).toList();
   }
 
+  @override
+  Future<List<model.Email>> searchEmailsStructured(
+    String? accountId,
+    FilterGroup filter,
+  ) async {
+    final rows = await (_db.select(_db.emails)
+          ..where((t) {
+            final fe = _filterGroup(filter, t);
+            if (accountId == null) return fe;
+            return t.accountId.equals(accountId) & fe;
+          })
+          ..orderBy([(t) => OrderingTerm.desc(t.receivedAt)])
+          ..limit(100))
+        .get();
+    return rows.map(_toModel).toList();
+  }
+
+  Expression<bool> _filterGroup(FilterGroup group, $EmailsTable t) {
+    if (group.isEmpty) return const Constant(true);
+    final exprs = group.children.map((c) => _filterNode(c, t)).toList();
+    return switch (group.operator) {
+      FilterOperator.and_ => exprs.reduce((a, b) => a & b),
+      FilterOperator.or_ => exprs.reduce((a, b) => a | b),
+    };
+  }
+
+  Expression<bool> _filterNode(FilterNode node, $EmailsTable t) =>
+      switch (node) {
+        final FilterLeaf l => _filterLeaf(l, t),
+        final FilterGroup g => _filterGroup(g, t),
+      };
+
+  Expression<bool> _filterLeaf(FilterLeaf leaf, $EmailsTable t) {
+    final val = leaf.value.toLowerCase();
+    return switch (leaf.field) {
+      FilterField.from_ => _jsonLike(t.fromJson, leaf.comparison, val),
+      FilterField.to => _jsonLike(t.toAddresses, leaf.comparison, val),
+      FilterField.cc => _jsonLike(t.ccJson, leaf.comparison, val),
+      FilterField.subject => _textLike(t.subject, leaf.comparison, val),
+      // Size is not stored in the local cache; skip silently.
+      FilterField.size => const Constant(true),
+    };
+  }
+
+  Expression<bool> _jsonLike(
+    GeneratedColumn<String> col,
+    FilterComparison comp,
+    String val,
+  ) =>
+      switch (comp) {
+        FilterComparison.contains => col.like('%$val%'),
+        FilterComparison.is_ => col.like('%"email":"$val"%'),
+        FilterComparison.matches => col.like(_globToLike(val)),
+        _ => const Constant(true),
+      };
+
+  Expression<bool> _textLike(
+    GeneratedColumn<String> col,
+    FilterComparison comp,
+    String val,
+  ) =>
+      switch (comp) {
+        FilterComparison.contains => col.like('%$val%'),
+        FilterComparison.is_ => col.like(val),
+        FilterComparison.matches => col.like(_globToLike(val)),
+        _ => const Constant(true),
+      };
+
+  static String _globToLike(String glob) {
+    final buf = StringBuffer();
+    for (var i = 0; i < glob.length; i++) {
+      final ch = glob[i];
+      if (ch == '%' || ch == '_') {
+        buf.write('\\$ch');
+      } else if (ch == '*') {
+        buf.write('%');
+      } else if (ch == '?') {
+        buf.write('_');
+      } else {
+        buf.write(ch);
+      }
+    }
+    return buf.toString();
+  }
+
   /// Converts a user query string into an FTS5 match expression.
   /// Each whitespace-separated word becomes a prefix term (word*) so that
   /// partial words still match. Special FTS5 characters are stripped.
   static String _toFtsQuery(String query) {
     final words = query
         .trim()
-        .split(RegExp(r'\s+'))
-        .where((w) => w.isNotEmpty)
-        .map((w) => w.replaceAll(RegExp(r'[^\w]'), ''))
+        .split(RegExp(r'[^\w]+'))
         .where((w) => w.isNotEmpty)
         .toList();
     if (words.isEmpty) return '';
@@ -3101,6 +3181,8 @@ class EmailRepositoryImpl implements EmailRepository {
   }
 
   @override
+  // Results are limited to emails already synced into the local SQLite FTS5
+  // index; call syncEmails first to ensure the index is up-to-date.
   Future<List<model.Email>> searchEmails(
     String accountId,
     String mailboxPath,
@@ -3111,7 +3193,7 @@ class EmailRepositoryImpl implements EmailRepository {
 
     const sql = 'SELECT e.* FROM email_fts f JOIN emails e ON e.rowid = f.rowid'
         ' WHERE email_fts MATCH ? AND e.account_id = ? AND e.mailbox_path = ?'
-        ' ORDER BY rank LIMIT 50';
+        ' ORDER BY e.received_at DESC LIMIT 50';
     final variables = [
       Variable<String>(ftsQuery),
       Variable<String>(accountId),
@@ -3124,14 +3206,14 @@ class EmailRepositoryImpl implements EmailRepository {
       queryRows.map((r) => _db.emails.mapFromRow(r)),
     );
 
-    final noteRows =
-        await _searchEmailsByNotes(accountId, mailboxPath, query);
+    final noteRows = await _searchEmailsByNotes(accountId, mailboxPath, query);
 
     final seen = <String>{};
     final merged = <model.Email>[];
     for (final e in [...emailRows.map(_toModel), ...noteRows]) {
       if (seen.add(e.id)) merged.add(e);
     }
+    merged.sort((a, b) => b.receivedAt.compareTo(a.receivedAt));
     return merged;
   }
 

lib/main.dart

@@ -109,6 +109,7 @@ class _SharedInboxAppState extends ConsumerState<SharedInboxApp> {
       theme: ThemeData(
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.indigo),
         useMaterial3: true,
+        splashFactory: NoSplash.splashFactory,
       ),
       darkTheme: ThemeData(
         colorScheme: ColorScheme.fromSeed(
@@ -116,6 +117,7 @@ class _SharedInboxAppState extends ConsumerState<SharedInboxApp> {
           brightness: Brightness.dark,
         ),
         useMaterial3: true,
+        splashFactory: NoSplash.splashFactory,
       ),
       routerConfig: router,
     );

lib/ui/screens/crash_screen.dart

@@ -57,6 +57,7 @@ class CrashScreen extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
+      theme: ThemeData(splashFactory: NoSplash.splashFactory),
       home: Scaffold(
         appBar: AppBar(
           title: const Text('Something went wrong'),

lib/ui/screens/email_detail_screen.dart

@@ -16,6 +16,7 @@ import 'package:sharedinbox/core/models/note.dart';
 import 'package:sharedinbox/core/models/undo_action.dart';
 import 'package:sharedinbox/core/models/user_preferences.dart';
 import 'package:sharedinbox/core/utils/format_utils.dart';
+import 'package:sharedinbox/core/utils/glob_match.dart';
 import 'package:sharedinbox/core/utils/html_utils.dart';
 import 'package:sharedinbox/di.dart';
 import 'package:sharedinbox/ui/screens/email_action_helpers.dart';
@@ -73,10 +74,6 @@ class _EmailDetailScreenState extends ConsumerState<EmailDetailScreen> {
     return Scaffold(
       appBar: AppBar(
         automaticallyImplyLeading: !isMobile,
-        title: Text(
-          header?.subject ?? '(loading…)',
-          overflow: TextOverflow.ellipsis,
-        ),
         actions: [
           IconButton(
             icon: const Icon(Icons.reply),
@@ -132,12 +129,20 @@ class _EmailDetailScreenState extends ConsumerState<EmailDetailScreen> {
               if (mounted) setState(() => _isFlagged = next);
             },
           ),
+          IconButton(
+            icon: const Icon(Icons.report_outlined),
+            tooltip: 'Mark as spam',
+            onPressed: header == null
+                ? null
+                : () {
+                    unawaited(_markAsSpam(context, header));
+                  },
+          ),
           PopupMenuButton<String>(
             itemBuilder: (ctx) => [
               const PopupMenuItem(value: 'forward', child: Text('Forward')),
               const PopupMenuItem(value: 'move', child: Text('Move to folder')),
               const PopupMenuItem(value: 'snooze', child: Text('Snooze')),
-              const PopupMenuItem(value: 'spam', child: Text('Mark as spam')),
               const PopupMenuItem(
                 value: 'mark_unread',
                 child: Text('Mark as unread'),
@@ -165,8 +170,6 @@ class _EmailDetailScreenState extends ConsumerState<EmailDetailScreen> {
                 unawaited(_moveTo(context, header));
               } else if (value == 'snooze' && header != null) {
                 unawaited(_snooze(context, header));
-              } else if (value == 'spam' && header != null) {
-                unawaited(_markAsSpam(context, header));
               } else if (value == 'mark_unread') {
                 final nextEmailId = await _getNextEmailIdIfNeeded(header);
                 await repo.setFlag(widget.emailId, seen: false);
@@ -208,8 +211,8 @@ class _EmailDetailScreenState extends ConsumerState<EmailDetailScreen> {
     final senderEmail = header?.from.isNotEmpty == true
         ? header!.from.first.email.toLowerCase()
         : null;
-    final isTrusted =
-        senderEmail != null && trustedSenders.contains(senderEmail);
+    final isTrusted = senderEmail != null &&
+        trustedSenders.any((p) => globMatch(senderEmail, p));
     final effectiveLoadImages = _loadRemoteImages || isTrusted;
 
     return ListView(
@@ -236,6 +239,10 @@ class _EmailDetailScreenState extends ConsumerState<EmailDetailScreen> {
                       ScaffoldMessenger.of(ctx).showSnackBar(
                         SnackBar(
                           duration: const Duration(seconds: 3),
+                          // SnackBar defaults to persist=true when an action
+                          // is set, which disables the auto-dismiss timer.
+                          // Explicitly opt back into duration-based dismiss.
+                          persist: false,
                           content: const Text(
                             'Images will be loaded automatically for this sender.',
                           ),

lib/ui/screens/email_list_screen.dart

@@ -278,7 +278,14 @@ class _EmailListScreenState extends ConsumerState<EmailListScreen> {
                 ),
             ],
             onChanged: _onSearchChanged,
-            onSubmitted: _runSearch,
+            onSubmitted: (value) {
+              // Only run the search if results haven't settled yet via
+              // onChanged — prevents a second IMAP round-trip from reordering
+              // the already-visible results when the user presses Enter.
+              if (_searchResults == null && !_searchLoading) {
+                unawaited(_runSearch(value));
+              }
+            },
             textInputAction: TextInputAction.search,
           ),
         ),

lib/ui/screens/search_screen.dart

@@ -4,10 +4,12 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/core/models/mailbox.dart';
 import 'package:sharedinbox/core/utils/logger.dart';
 import 'package:sharedinbox/di.dart';
+import 'package:sharedinbox/ui/widgets/filter_builder.dart';
 import 'package:sharedinbox/ui/widgets/thread_tile.dart';
 
 final _searchHistoryProvider = FutureProvider.autoDispose<List<String>>((
@@ -37,6 +39,10 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
   bool _loading = false;
   bool _fieldFocused = false;
 
+  // Advanced (structured) search state.
+  bool _advancedMode = false;
+  FilterGroup _filterGroup = FilterGroup.empty();
+
   @override
   void initState() {
     super.initState();
@@ -53,6 +59,13 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
     super.dispose();
   }
 
+  void _toggleAdvanced() {
+    setState(() {
+      _advancedMode = !_advancedMode;
+      _results = null;
+    });
+  }
+
   void _onChanged(String value) {
     _debounce?.cancel();
     if (value.trim().length < 3) {
@@ -135,22 +148,47 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
     }
   }
 
+  Future<void> _searchStructured() async {
+    if (_filterGroup.isEmpty) return;
+    setState(() => _loading = true);
+    try {
+      final emails = await ref
+          .read(emailRepositoryProvider)
+          .searchEmailsStructured(widget.accountId, _filterGroup);
+      if (mounted) {
+        setState(() {
+          _results = _SearchResults(
+            mailboxes: const [],
+            addresses: const [],
+            emails: emails,
+          );
+          _loading = false;
+        });
+      }
+    } catch (e) {
+      log('Structured search failed: $e');
+      if (mounted) setState(() => _loading = false);
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: TextField(
-          controller: _ctrl,
-          focusNode: _focusNode,
-          autofocus: true,
-          decoration: const InputDecoration(
-            hintText: 'Search folders, addresses, emails…',
-            border: InputBorder.none,
-          ),
-          onChanged: _onChanged,
-        ),
+        title: _advancedMode
+            ? const Text('Advanced Search')
+            : TextField(
+                controller: _ctrl,
+                focusNode: _focusNode,
+                autofocus: true,
+                decoration: const InputDecoration(
+                  hintText: 'Search folders, addresses, emails…',
+                  border: InputBorder.none,
+                ),
+                onChanged: _onChanged,
+              ),
         actions: [
-          if (_ctrl.text.isNotEmpty)
+          if (!_advancedMode && _ctrl.text.isNotEmpty)
             IconButton(
               icon: const Icon(Icons.clear),
               onPressed: () {
@@ -158,6 +196,15 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
                 setState(() => _results = null);
               },
             ),
+          IconButton(
+            icon: Icon(
+              _advancedMode ? Icons.search : Icons.tune,
+              color:
+                  _advancedMode ? Theme.of(context).colorScheme.primary : null,
+            ),
+            tooltip: _advancedMode ? 'Simple search' : 'Advanced search',
+            onPressed: _toggleAdvanced,
+          ),
         ],
       ),
       body: _buildBody(),
@@ -165,6 +212,7 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
   }
 
   Widget _buildBody() {
+    if (_advancedMode) return _buildAdvancedBody();
     if (_loading) return const Center(child: CircularProgressIndicator());
     if (_results == null) {
       if (_fieldFocused && _ctrl.text.isEmpty) {
@@ -174,7 +222,54 @@ class _SearchScreenState extends ConsumerState<SearchScreen> {
     }
     final r = _results!;
     if (r.isEmpty) return const Center(child: Text('No results'));
+    return _buildResultsList(r);
+  }
+
+  Widget _buildAdvancedBody() {
+    return SingleChildScrollView(
+      padding: const EdgeInsets.all(12),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        children: [
+          FilterBuilderWidget(
+            initialValue: _filterGroup,
+            onChanged: (g) => setState(() {
+              _filterGroup = g;
+              _results = null;
+            }),
+          ),
+          const SizedBox(height: 12),
+          FilledButton.icon(
+            onPressed: _filterGroup.isEmpty ? null : _searchStructured,
+            icon: const Icon(Icons.search),
+            label: const Text('Search'),
+          ),
+          if (_loading)
+            const Padding(
+              padding: EdgeInsets.only(top: 24),
+              child: Center(child: CircularProgressIndicator()),
+            )
+          else if (_results != null) ...[
+            const SizedBox(height: 8),
+            if (_results!.isEmpty)
+              const Center(
+                child: Padding(
+                  padding: EdgeInsets.all(24),
+                  child: Text('No results'),
+                ),
+              )
+            else
+              _buildResultsList(_results!),
+          ],
+        ],
+      ),
+    );
+  }
+
+  Widget _buildResultsList(_SearchResults r) {
     return ListView(
+      shrinkWrap: true,
+      physics: const NeverScrollableScrollPhysics(),
       children: [
         if (r.mailboxes.isNotEmpty) ...[
           const _SectionHeader('Folders'),

lib/ui/screens/sieve_script_edit_screen.dart

@@ -3,8 +3,13 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
+import 'package:sharedinbox/core/filter/filter_expression.dart';
+import 'package:sharedinbox/core/filter/filter_sieve_converter.dart';
 import 'package:sharedinbox/core/models/sieve_script.dart';
+import 'package:sharedinbox/core/sieve/sieve_actions.dart';
+import 'package:sharedinbox/core/sieve/sieve_serializer.dart';
 import 'package:sharedinbox/di.dart';
+import 'package:sharedinbox/ui/widgets/filter_builder.dart';
 
 class SieveScriptEditScreen extends ConsumerStatefulWidget {
   const SieveScriptEditScreen({
@@ -27,18 +32,29 @@ class SieveScriptEditScreen extends ConsumerStatefulWidget {
       _SieveScriptEditScreenState();
 }
 
-class _SieveScriptEditScreenState extends ConsumerState<SieveScriptEditScreen> {
+class _SieveScriptEditScreenState extends ConsumerState<SieveScriptEditScreen>
+    with SingleTickerProviderStateMixin {
   late final TextEditingController _nameController;
   late final TextEditingController _contentController;
+  late final TabController _tabController;
+
   bool _loadingContent = false;
   bool _saving = false;
   String? _error;
 
+  // Visual-editor state.
+  FilterGroup _filterGroup = FilterGroup.empty();
+  List<SieveAction> _actions = [];
+  bool _visualSupported = true;
+  int _visualLoadCount = 0;
+
   @override
   void initState() {
     super.initState();
     _nameController = TextEditingController(text: widget.script?.name ?? '');
     _contentController = TextEditingController();
+    _tabController = TabController(length: 2, vsync: this);
+    _tabController.addListener(_onTabChanged);
     if (widget.script != null) {
       unawaited(_loadContent());
     }
@@ -48,9 +64,40 @@ class _SieveScriptEditScreenState extends ConsumerState<SieveScriptEditScreen> {
   void dispose() {
     _nameController.dispose();
     _contentController.dispose();
+    _tabController
+      ..removeListener(_onTabChanged)
+      ..dispose();
     super.dispose();
   }
 
+  void _onTabChanged() {
+    if (_tabController.indexIsChanging) return;
+    if (_tabController.index == 1) {
+      // Switched to Script tab: serialize visual state.
+      if (_visualSupported) {
+        _contentController.text =
+            SieveSerializer().serialize(_filterGroup, _actions);
+      }
+    } else {
+      // Switched to Visual tab: parse script into visual state.
+      _parseScriptIntoVisual();
+    }
+  }
+
+  void _parseScriptIntoVisual() {
+    final result = FilterSieveConverter().parse(_contentController.text);
+    if (result == null) {
+      setState(() => _visualSupported = false);
+      return;
+    }
+    setState(() {
+      _filterGroup = result.group;
+      _actions = List<SieveAction>.from(result.actions);
+      _visualSupported = true;
+      _visualLoadCount++;
+    });
+  }
+
   Future<void> _loadContent() async {
     setState(() => _loadingContent = true);
     try {
@@ -63,6 +110,7 @@ class _SieveScriptEditScreenState extends ConsumerState<SieveScriptEditScreen> {
               .getScriptContent(widget.accountId, widget.script!.blobId);
       if (mounted) {
         _contentController.text = content;
+        _parseScriptIntoVisual();
         setState(() => _loadingContent = false);
       }
     } catch (e) {
@@ -76,6 +124,11 @@ class _SieveScriptEditScreenState extends ConsumerState<SieveScriptEditScreen> {
   }
 
   Future<void> _save() async {
+    // Sync visual → script if on visual tab.
+    if (_tabController.index == 0 && _visualSupported) {
+      _contentController.text =
+          SieveSerializer().serialize(_filterGroup, _actions);
+    }
     final name = _nameController.text.trim();
     if (name.isEmpty) {
       setState(() => _error = 'Name is required');
@@ -118,6 +171,10 @@ class _SieveScriptEditScreenState extends ConsumerState<SieveScriptEditScreen> {
     return Scaffold(
       appBar: AppBar(
         title: Text(isNew ? 'New script' : 'Edit script'),
+        bottom: TabBar(
+          controller: _tabController,
+          tabs: const [Tab(text: 'Visual'), Tab(text: 'Script')],
+        ),
         actions: [
           if (_saving)
             const Padding(
@@ -163,18 +220,9 @@ class _SieveScriptEditScreenState extends ConsumerState<SieveScriptEditScreen> {
                     const SizedBox(height: 8),
                   ],
                   Expanded(
-                    child: TextField(
-                      controller: _contentController,
-                      decoration: const InputDecoration(
-                        labelText: 'Script',
-                        border: OutlineInputBorder(),
-                        alignLabelWithHint: true,
-                      ),
-                      maxLines: null,
-                      expands: true,
-                      textAlignVertical: TextAlignVertical.top,
-                      style: const TextStyle(fontFamily: 'monospace'),
-                      enabled: !_saving,
+                    child: TabBarView(
+                      controller: _tabController,
+                      children: [_buildVisualTab(), _buildScriptTab()],
                     ),
                   ),
                 ],
@@ -182,4 +230,220 @@ class _SieveScriptEditScreenState extends ConsumerState<SieveScriptEditScreen> {
             ),
     );
   }
+
+  Widget _buildVisualTab() {
+    if (!_visualSupported) {
+      return Center(
+        child: Padding(
+          padding: const EdgeInsets.all(24),
+          child: Text(
+            'This script uses features not supported by the visual editor.\n'
+            'Edit as raw Sieve on the Script tab.',
+            textAlign: TextAlign.center,
+            style: TextStyle(
+              color: Theme.of(context).colorScheme.onSurfaceVariant,
+            ),
+          ),
+        ),
+      );
+    }
+    return SingleChildScrollView(
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.stretch,
+        children: [
+          FilterBuilderWidget(
+            key: ValueKey(_visualLoadCount),
+            initialValue: _filterGroup,
+            onChanged: (g) => setState(() => _filterGroup = g),
+          ),
+          const SizedBox(height: 12),
+          _ActionEditor(
+            actions: _actions,
+            onChanged: (a) => setState(() => _actions = a),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildScriptTab() {
+    return TextField(
+      controller: _contentController,
+      decoration: const InputDecoration(
+        labelText: 'Script',
+        border: OutlineInputBorder(),
+        alignLabelWithHint: true,
+      ),
+      maxLines: null,
+      expands: true,
+      textAlignVertical: TextAlignVertical.top,
+      style: const TextStyle(fontFamily: 'monospace'),
+      enabled: !_saving,
+    );
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Action editor
+// ---------------------------------------------------------------------------
+
+enum _ActionType { keep, discard, markAsRead, fileInto }
+
+class _ActionEditor extends StatelessWidget {
+  const _ActionEditor({required this.actions, required this.onChanged});
+
+  final List<SieveAction> actions;
+  final void Function(List<SieveAction>) onChanged;
+
+  _ActionType _typeOf(SieveAction a) => switch (a) {
+        KeepAction() => _ActionType.keep,
+        DiscardAction() => _ActionType.discard,
+        MarkAsSeenAction() => _ActionType.markAsRead,
+        FileIntoAction() => _ActionType.fileInto,
+        FlagAction() => _ActionType.keep,
+      };
+
+  SieveAction _defaultFor(_ActionType t) => switch (t) {
+        _ActionType.keep => KeepAction(),
+        _ActionType.discard => DiscardAction(),
+        _ActionType.markAsRead => MarkAsSeenAction(),
+        _ActionType.fileInto => FileIntoAction(''),
+      };
+
+  void _changeType(int i, _ActionType t) {
+    final next = List<SieveAction>.from(actions);
+    final current = next[i];
+    if (t == _ActionType.fileInto && current is FileIntoAction) return;
+    next[i] = _defaultFor(t);
+    onChanged(next);
+  }
+
+  void _changeFolder(int i, String folder) {
+    final next = List<SieveAction>.from(actions);
+    next[i] = FileIntoAction(folder);
+    onChanged(next);
+  }
+
+  void _remove(int i) {
+    final next = List<SieveAction>.from(actions)..removeAt(i);
+    onChanged(next);
+  }
+
+  void _add() {
+    onChanged([...actions, KeepAction()]);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Padding(
+          padding: const EdgeInsets.symmetric(vertical: 4),
+          child: Text('Actions', style: Theme.of(context).textTheme.labelLarge),
+        ),
+        for (var i = 0; i < actions.length; i++) _buildRow(context, i),
+        TextButton.icon(
+          onPressed: _add,
+          icon: const Icon(Icons.add, size: 16),
+          label: const Text('Add action'),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildRow(BuildContext context, int i) {
+    final action = actions[i];
+    final type = _typeOf(action);
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 4),
+      child: Row(
+        children: [
+          DropdownButton<_ActionType>(
+            value: type,
+            isDense: true,
+            underline: const SizedBox.shrink(),
+            onChanged: (t) {
+              if (t != null) _changeType(i, t);
+            },
+            items: const [
+              DropdownMenuItem(value: _ActionType.keep, child: Text('Keep')),
+              DropdownMenuItem(
+                value: _ActionType.discard,
+                child: Text('Discard'),
+              ),
+              DropdownMenuItem(
+                value: _ActionType.markAsRead,
+                child: Text('Mark as read'),
+              ),
+              DropdownMenuItem(
+                value: _ActionType.fileInto,
+                child: Text('File into'),
+              ),
+            ],
+          ),
+          if (type == _ActionType.fileInto) ...[
+            const SizedBox(width: 8),
+            Expanded(
+              child: _FolderField(
+                value: (action as FileIntoAction).folder,
+                onChanged: (v) => _changeFolder(i, v),
+              ),
+            ),
+          ] else
+            const Spacer(),
+          IconButton(
+            icon: const Icon(Icons.remove_circle_outline, size: 18),
+            tooltip: 'Remove',
+            onPressed: () => _remove(i),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _FolderField extends StatefulWidget {
+  const _FolderField({required this.value, required this.onChanged});
+  final String value;
+  final void Function(String) onChanged;
+
+  @override
+  State<_FolderField> createState() => _FolderFieldState();
+}
+
+class _FolderFieldState extends State<_FolderField> {
+  late final TextEditingController _ctrl;
+
+  @override
+  void initState() {
+    super.initState();
+    _ctrl = TextEditingController(text: widget.value);
+  }
+
+  @override
+  void didUpdateWidget(_FolderField old) {
+    super.didUpdateWidget(old);
+    if (widget.value != _ctrl.text) _ctrl.text = widget.value;
+  }
+
+  @override
+  void dispose() {
+    _ctrl.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return TextField(
+      controller: _ctrl,
+      onChanged: widget.onChanged,
+      decoration: const InputDecoration(
+        hintText: 'folder',
+        isDense: true,
+        border: OutlineInputBorder(),
+        contentPadding: EdgeInsets.symmetric(horizontal: 8, vertical: 6),
+      ),
+    );
+  }
 }

lib/ui/screens/thread_detail_screen.dart

@@ -8,6 +8,7 @@ import 'package:intl/intl.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/core/models/undo_action.dart';
 import 'package:sharedinbox/core/models/user_preferences.dart';
+import 'package:sharedinbox/core/utils/glob_match.dart';
 import 'package:sharedinbox/core/utils/html_utils.dart';
 import 'package:sharedinbox/di.dart';
 import 'package:sharedinbox/ui/widgets/secure_email_webview.dart';
@@ -118,8 +119,8 @@ class _EmailMessageCardState extends ConsumerState<_EmailMessageCard> {
     final senderEmail = widget.email.from.isNotEmpty
         ? widget.email.from.first.email.toLowerCase()
         : null;
-    final isTrusted =
-        senderEmail != null && trustedSenders.contains(senderEmail);
+    final isTrusted = senderEmail != null &&
+        trustedSenders.any((p) => globMatch(senderEmail, p));
 
     return Card(
       margin: const EdgeInsets.symmetric(vertical: 4),
@@ -213,6 +214,10 @@ class _EmailMessageCardState extends ConsumerState<_EmailMessageCard> {
                             ScaffoldMessenger.of(context).showSnackBar(
                               SnackBar(
                                 duration: const Duration(seconds: 3),
+                                // SnackBar defaults to persist=true when an
+                                // action is set, which disables auto-dismiss.
+                                // Explicitly opt into duration-based dismiss.
+                                persist: false,
                                 content: const Text(
                                   'Images will be loaded automatically for this sender.',
                                 ),

lib/ui/screens/trusted_image_senders_screen.dart

@@ -16,6 +16,11 @@ class TrustedImageSendersScreen extends ConsumerWidget {
 
     return Scaffold(
       appBar: AppBar(title: const Text('Allowed addresses for images')),
+      floatingActionButton: FloatingActionButton(
+        tooltip: 'Add address',
+        onPressed: () => _showAddDialog(context, ref),
+        child: const Icon(Icons.add),
+      ),
       body: trustedSendersAsync.when(
         loading: () => const Center(child: CircularProgressIndicator()),
         error: (_, __) =>
@@ -26,7 +31,8 @@ class TrustedImageSendersScreen extends ConsumerWidget {
               padding: EdgeInsets.all(16),
               child: Text(
                 'No addresses added yet. '
-                'Tap "Load remote images" in an email to add the sender.',
+                'Tap + to add an address or pattern (e.g. *@example.com), '
+                'or tap "Load remote images" in an email to add the sender automatically.',
               ),
             );
           }
@@ -60,4 +66,61 @@ class TrustedImageSendersScreen extends ConsumerWidget {
       ),
     );
   }
+
+  Future<void> _showAddDialog(BuildContext context, WidgetRef ref) async {
+    final controller = TextEditingController();
+
+    await showDialog<void>(
+      context: context,
+      builder: (ctx) {
+        return StatefulBuilder(
+          builder: (ctx, setState) {
+            return AlertDialog(
+              title: const Text('Add allowed address'),
+              content: TextField(
+                controller: controller,
+                autofocus: true,
+                keyboardType: TextInputType.emailAddress,
+                decoration: const InputDecoration(
+                  labelText: 'Email address or pattern',
+                  hintText: '*@example.com',
+                  helperText: '* matches any characters, e.g. *@example.com',
+                ),
+                onChanged: (_) => setState(() {}),
+                onSubmitted: (value) {
+                  if (value.trim().isNotEmpty) {
+                    _addSender(ref, value);
+                    Navigator.of(ctx).pop();
+                  }
+                },
+              ),
+              actions: [
+                TextButton(
+                  onPressed: () => Navigator.of(ctx).pop(),
+                  child: const Text('Cancel'),
+                ),
+                TextButton(
+                  onPressed: controller.text.trim().isEmpty
+                      ? null
+                      : () {
+                          _addSender(ref, controller.text);
+                          Navigator.of(ctx).pop();
+                        },
+                  child: const Text('Add'),
+                ),
+              ],
+            );
+          },
+        );
+      },
+    );
+  }
+
+  void _addSender(WidgetRef ref, String value) {
+    unawaited(
+      ref
+          .read(userPreferencesRepositoryProvider)
+          .addTrustedImageSender(value.trim()),
+    );
+  }
 }

lib/ui/screens/undo_log_detail_screen.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:go_router/go_router.dart';
 import 'package:intl/intl.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/core/models/undo_action.dart';
@@ -93,7 +94,9 @@ class UndoLogDetailScreen extends ConsumerWidget {
                 style: theme.textTheme.bodySmall,
               ),
             ),
-          ...action.originalEmails.map((email) => _EmailTile(email: email)),
+          ...action.originalEmails.map(
+            (email) => _EmailTile(email: email, accountId: action.accountId),
+          ),
         ],
       ),
     );
@@ -120,13 +123,14 @@ class _SectionHeader extends StatelessWidget {
   }
 }
 
-class _EmailTile extends StatelessWidget {
-  const _EmailTile({required this.email});
+class _EmailTile extends ConsumerWidget {
+  const _EmailTile({required this.email, required this.accountId});
 
   final Email email;
+  final String accountId;
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef ref) {
     final sender = email.from.isNotEmpty
         ? (email.from.first.name ?? email.from.first.email)
         : '(Unknown Sender)';
@@ -134,6 +138,43 @@ class _EmailTile extends StatelessWidget {
       leading: const Icon(Icons.email_outlined),
       title: Text(email.subject ?? '(No Subject)'),
       subtitle: Text(sender, maxLines: 1, overflow: TextOverflow.ellipsis),
+      trailing: const Icon(Icons.chevron_right),
+      onTap: () => _openEmail(context, ref),
+    );
+  }
+
+  Future<void> _openEmail(BuildContext context, WidgetRef ref) async {
+    final messageId = email.messageId;
+    final messenger = ScaffoldMessenger.of(context);
+    if (messageId == null) {
+      messenger.showSnackBar(
+        const SnackBar(
+          duration: Duration(seconds: 5),
+          content: Text('Cannot locate this email — no Message-ID.'),
+        ),
+      );
+      return;
+    }
+    final found = await ref
+        .read(emailRepositoryProvider)
+        .findEmailByMessageId(accountId, messageId);
+    if (!context.mounted) return;
+    if (found == null) {
+      messenger.showSnackBar(
+        const SnackBar(
+          duration: Duration(seconds: 5),
+          content: Text(
+            'Email no longer exists at its previous location. '
+            'Use Undo to restore it.',
+          ),
+        ),
+      );
+      return;
+    }
+    context.go(
+      '/accounts/$accountId'
+      '/mailboxes/${Uri.encodeComponent(found.mailboxPath)}'
+      '/emails/${Uri.encodeComponent(found.id)}',
     );
   }
 }

lib/ui/widgets/filter_builder.dart

@@ -0,0 +1,312 @@
+import 'package:flutter/material.dart';
+import 'package:sharedinbox/core/filter/filter_expression.dart';
+
+/// A widget that lets the user build a structured [FilterGroup] interactively.
+///
+/// Use a [ValueKey] on this widget when replacing [initialValue] from the
+/// outside (e.g., after loading a Sieve script) to force a full rebuild.
+class FilterBuilderWidget extends StatefulWidget {
+  const FilterBuilderWidget({
+    super.key,
+    required this.initialValue,
+    required this.onChanged,
+  });
+
+  final FilterGroup initialValue;
+  final void Function(FilterGroup) onChanged;
+
+  @override
+  State<FilterBuilderWidget> createState() => _FilterBuilderWidgetState();
+}
+
+class _FilterBuilderWidgetState extends State<FilterBuilderWidget> {
+  late FilterGroup _group;
+
+  @override
+  void initState() {
+    super.initState();
+    _group = widget.initialValue;
+  }
+
+  void _update(FilterGroup g) {
+    setState(() => _group = g);
+    widget.onChanged(g);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return _GroupEditor(
+      group: _group,
+      onChanged: _update,
+      depth: 0,
+    );
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Group editor
+// ---------------------------------------------------------------------------
+
+class _GroupEditor extends StatelessWidget {
+  const _GroupEditor({
+    super.key,
+    required this.group,
+    required this.onChanged,
+    required this.depth,
+    this.onRemoveGroup,
+  });
+
+  final FilterGroup group;
+  final void Function(FilterGroup) onChanged;
+  final int depth;
+  final VoidCallback? onRemoveGroup;
+
+  static const _maxDepth = 1;
+
+  void _setOperator(FilterOperator op) =>
+      onChanged(group.copyWith(operator: op));
+
+  void _addLeaf() {
+    final leaf = FilterLeaf(
+      field: FilterField.from_,
+      comparison: FilterComparison.contains,
+      value: '',
+    );
+    onChanged(group.copyWith(children: [...group.children, leaf]));
+  }
+
+  void _addSubGroup() {
+    final sub = FilterGroup(
+      operator: FilterOperator.and_,
+      children: [],
+    );
+    onChanged(group.copyWith(children: [...group.children, sub]));
+  }
+
+  void _replaceChild(int index, FilterNode node) {
+    final next = List<FilterNode>.from(group.children);
+    next[index] = node;
+    onChanged(group.copyWith(children: next));
+  }
+
+  void _removeChild(int index) {
+    final next = List<FilterNode>.from(group.children)..removeAt(index);
+    onChanged(group.copyWith(children: next));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final isRoot = depth == 0;
+    final content = Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        _OperatorRow(
+          operator: group.operator,
+          onChanged: _setOperator,
+          onRemove: onRemoveGroup,
+        ),
+        for (var i = 0; i < group.children.length; i++) _buildChild(context, i),
+        const SizedBox(height: 6),
+        Row(
+          children: [
+            TextButton.icon(
+              onPressed: _addLeaf,
+              icon: const Icon(Icons.add, size: 16),
+              label: const Text('Add condition'),
+            ),
+            if (depth < _maxDepth)
+              TextButton.icon(
+                onPressed: _addSubGroup,
+                icon: const Icon(Icons.playlist_add, size: 16),
+                label: const Text('Add group'),
+              ),
+          ],
+        ),
+      ],
+    );
+    if (isRoot) return content;
+    return Card(
+      margin: const EdgeInsets.only(left: 12, top: 4, bottom: 4),
+      color: theme.colorScheme.surfaceContainerLow,
+      child: Padding(
+        padding: const EdgeInsets.all(8),
+        child: content,
+      ),
+    );
+  }
+
+  Widget _buildChild(BuildContext context, int i) {
+    final child = group.children[i];
+    return switch (child) {
+      final FilterLeaf leaf => _LeafRow(
+          key: ValueKey(i),
+          leaf: leaf,
+          onChanged: (l) => _replaceChild(i, l),
+          onDelete: () => _removeChild(i),
+        ),
+      final FilterGroup sub => _GroupEditor(
+          key: ValueKey(i),
+          group: sub,
+          onChanged: (g) => _replaceChild(i, g),
+          depth: depth + 1,
+          onRemoveGroup: () => _removeChild(i),
+        ),
+    };
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Operator row (AND / OR toggle)
+// ---------------------------------------------------------------------------
+
+class _OperatorRow extends StatelessWidget {
+  const _OperatorRow({
+    required this.operator,
+    required this.onChanged,
+    this.onRemove,
+  });
+
+  final FilterOperator operator;
+  final void Function(FilterOperator) onChanged;
+  final VoidCallback? onRemove;
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      children: [
+        SegmentedButton<FilterOperator>(
+          segments: const [
+            ButtonSegment(value: FilterOperator.and_, label: Text('AND')),
+            ButtonSegment(value: FilterOperator.or_, label: Text('OR')),
+          ],
+          selected: {operator},
+          onSelectionChanged: (s) => onChanged(s.first),
+          style: const ButtonStyle(
+            visualDensity: VisualDensity.compact,
+            tapTargetSize: MaterialTapTargetSize.shrinkWrap,
+          ),
+        ),
+        const Spacer(),
+        if (onRemove != null)
+          IconButton(
+            icon: const Icon(Icons.close, size: 18),
+            tooltip: 'Remove group',
+            onPressed: onRemove,
+          ),
+      ],
+    );
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Leaf row (field | comparison | value | delete)
+// ---------------------------------------------------------------------------
+
+class _LeafRow extends StatefulWidget {
+  const _LeafRow({
+    super.key,
+    required this.leaf,
+    required this.onChanged,
+    required this.onDelete,
+  });
+
+  final FilterLeaf leaf;
+  final void Function(FilterLeaf) onChanged;
+  final VoidCallback onDelete;
+
+  @override
+  State<_LeafRow> createState() => _LeafRowState();
+}
+
+class _LeafRowState extends State<_LeafRow> {
+  late final TextEditingController _ctrl;
+
+  @override
+  void initState() {
+    super.initState();
+    _ctrl = TextEditingController(text: widget.leaf.value);
+  }
+
+  @override
+  void didUpdateWidget(_LeafRow old) {
+    super.didUpdateWidget(old);
+    if (widget.leaf.value != _ctrl.text) {
+      _ctrl.text = widget.leaf.value;
+    }
+  }
+
+  @override
+  void dispose() {
+    _ctrl.dispose();
+    super.dispose();
+  }
+
+  void _onFieldChanged(FilterField? f) {
+    if (f == null) return;
+    final allowed = f.allowedComparisons;
+    final comp = allowed.contains(widget.leaf.comparison)
+        ? widget.leaf.comparison
+        : allowed.first;
+    widget.onChanged(widget.leaf.copyWith(field: f, comparison: comp));
+  }
+
+  void _onCompChanged(FilterComparison? c) {
+    if (c == null) return;
+    widget.onChanged(widget.leaf.copyWith(comparison: c));
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 4),
+      child: Row(
+        children: [
+          DropdownButton<FilterField>(
+            value: widget.leaf.field,
+            onChanged: _onFieldChanged,
+            isDense: true,
+            underline: const SizedBox.shrink(),
+            items: FilterField.values
+                .map(
+                  (f) => DropdownMenuItem(value: f, child: Text(f.label)),
+                )
+                .toList(),
+          ),
+          const SizedBox(width: 8),
+          DropdownButton<FilterComparison>(
+            value: widget.leaf.comparison,
+            onChanged: _onCompChanged,
+            isDense: true,
+            underline: const SizedBox.shrink(),
+            items: widget.leaf.field.allowedComparisons
+                .map(
+                  (c) => DropdownMenuItem(value: c, child: Text(c.label)),
+                )
+                .toList(),
+          ),
+          const SizedBox(width: 8),
+          Expanded(
+            child: TextField(
+              controller: _ctrl,
+              onChanged: (v) =>
+                  widget.onChanged(widget.leaf.copyWith(value: v)),
+              decoration: const InputDecoration(
+                hintText: 'value',
+                isDense: true,
+                border: OutlineInputBorder(),
+                contentPadding:
+                    EdgeInsets.symmetric(horizontal: 8, vertical: 6),
+              ),
+            ),
+          ),
+          IconButton(
+            icon: const Icon(Icons.remove_circle_outline, size: 18),
+            tooltip: 'Remove',
+            onPressed: widget.onDelete,
+          ),
+        ],
+      ),
+    );
+  }
+}

pubspec.lock

@@ -5,18 +5,18 @@ packages:
     dependency: transitive
     description:
       name: _fe_analyzer_shared
-      sha256: "8d7ff3948166b8ec5da0fbb5962000926b8e02f2ed9b3e51d1738905fbd4c98d"
+      sha256: a49d6cf99e8d8e7a8e93668d09ced0bbdb954d0b4fccc2f5f9241c6b87fad95c
       url: "https://pub.dev"
     source: hosted
-    version: "93.0.0"
+    version: "99.0.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
-      sha256: de7148ed2fcec579b19f122c1800933dfa028f6d9fd38a152b04b1516cec120b
+      sha256: "663efa951fb8a45e06f491223a604c93820598f20e6a99c25617a1576065e8b7"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.1"
+    version: "12.1.0"
   archive:
     dependency: transitive
     description:
@@ -165,10 +165,10 @@ packages:
     dependency: transitive
     description:
       name: code_assets
-      sha256: "83ccdaa064c980b5596c35dd64a8d3ecc68620174ab9b90b6343b753aa721687"
+      sha256: bf394f466ba9205f1812a0433b392d6af280f155f56651eda7c18cc32ed493b8
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.0"
+    version: "1.2.1"
   code_builder:
     dependency: transitive
     description:
@@ -237,18 +237,18 @@ packages:
     dependency: transitive
     description:
       name: dart_style
-      sha256: "29f7ecc274a86d32920b1d9cfc7502fa87220da41ec60b55f329559d5732e2b2"
+      sha256: a4c1ccfee44c7e75ed80484071a5c142a385345e658fd8bd7c4b5c97e7198f98
       url: "https://pub.dev"
     source: hosted
-    version: "3.1.7"
+    version: "3.1.8"
   dbus:
     dependency: transitive
     description:
       name: dbus
-      sha256: d0c98dcd4f5169878b6cf8f6e0a52403a9dff371a3e2f019697accbf6f44a270
+      sha256: "0ce9b0a839e6dee59a37a623d2fc26a35bbbe6404213e419b0d6411023d62645"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.12"
+    version: "0.7.14"
   device_info_plus:
     dependency: "direct main"
     description:
@@ -349,10 +349,10 @@ packages:
     dependency: "direct main"
     description:
       name: file_picker
-      sha256: "0204695694b687b167fd497da5252e9f4aaa162e8d274d6fa1e757380f2a5f46"
+      sha256: fc83774ce5bd7ce08168333b5e53dbe9090ec04eb21e7aa7cd7bac921032c934
       url: "https://pub.dev"
     source: hosted
-    version: "12.0.0-beta.4"
+    version: "12.0.0-beta.5"
   fixnum:
     dependency: transitive
     description:
@@ -391,34 +391,42 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_local_notifications
-      sha256: "0d9035862236fe38250fe1644d7ed3b8254e34a21b2c837c9f539fbb3bba5ef1"
+      sha256: be38e3854d2baabcda8e16966a5fe8748cebb655bb94701494da0f052c2fc352
       url: "https://pub.dev"
     source: hosted
-    version: "21.0.0"
+    version: "22.0.0"
   flutter_local_notifications_linux:
     dependency: transitive
     description:
       name: flutter_local_notifications_linux
-      sha256: e0f25e243c6c44c825bbbc6b2b2e76f7d9222362adcfe9fd780bf01923c840bd
+      sha256: "9ca97e63776f29ab1b955725c09999fc2c150523269db150c39274f2a43c5a8b"
       url: "https://pub.dev"
     source: hosted
-    version: "8.0.0"
+    version: "8.0.1"
   flutter_local_notifications_platform_interface:
     dependency: transitive
     description:
       name: flutter_local_notifications_platform_interface
-      sha256: e7db3d5b49c2b7ecc68deba4aaaa67a348f92ee0fef34c8e4b4459dbef0d7307
+      sha256: ff0013eae795e8dc8fad4a8992a209e64d3ba2fbd8bf5e43c36bf448f95bd814
       url: "https://pub.dev"
     source: hosted
-    version: "11.0.0"
+    version: "12.0.0"
+  flutter_local_notifications_web:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_web
+      sha256: "516afaf97a2d1e67a036c6617321b00d205d72f7a67b6eccf936cd565f985878"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   flutter_local_notifications_windows:
     dependency: transitive
     description:
       name: flutter_local_notifications_windows
-      sha256: "3a2654ba104fbb52c618ebed9def24ef270228470718c43b3a6afcd5c81bef0c"
+      sha256: "5aeed973a0c1480706784fad05c5c3a911335ebb561b2274b47fe80b375201e1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
+    version: "3.1.0"
   flutter_markdown_plus:
     dependency: "direct main"
     description:
@@ -431,10 +439,10 @@ packages:
     dependency: transitive
     description:
       name: flutter_plugin_android_lifecycle
-      sha256: "38d1c268de9097ff59cf0e844ac38759fc78f76836d37edad06fa21e182055a0"
+      sha256: "3854fe5e3bff0b113c658f260b90c95dea17c92db0f2addeac2e343dd9969785"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.34"
+    version: "2.0.35"
   flutter_riverpod:
     dependency: "direct main"
     description:
@@ -447,10 +455,10 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_secure_storage
-      sha256: d2a6ac2df7353f5ca47eb159a5407c1dba7ec48ca0e02dc38c9ff4d29447b261
+      sha256: "7686b1d6a29985dcbb808c59518226e603e3bfa7c0ddfd1a0d00e4cda77c868e"
       url: "https://pub.dev"
     source: hosted
-    version: "10.3.0"
+    version: "10.3.1"
   flutter_secure_storage_darwin:
     dependency: transitive
     description:
@@ -526,10 +534,10 @@ packages:
     dependency: "direct main"
     description:
       name: go_router
-      sha256: "92d8cee7c57dff0a6c409c05597b460002434eccf7424a712283225b3962d03f"
+      sha256: "5922b2861e2235a3504896f0d6fa07d84141b480cf52eecd2f42cd25585a9e8a"
       url: "https://pub.dev"
     source: hosted
-    version: "17.2.3"
+    version: "17.3.0"
   graphs:
     dependency: transitive
     description:
@@ -542,10 +550,10 @@ packages:
     dependency: transitive
     description:
       name: hooks
-      sha256: "025f060e86d2d4c3c47b56e33caf7f93bf9283340f26d23424ebcfccf34f621e"
+      sha256: "9a62a50b50b769a737bc0a8ff381f333529df3ab746b2f6b02e83760231455ba"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.3"
+    version: "2.0.2"
   http:
     dependency: "direct main"
     description:
@@ -707,10 +715,10 @@ packages:
     dependency: transitive
     description:
       name: native_toolchain_c
-      sha256: "6ba77bb18063eebe9de401f5e6437e95e1438af0a87a3a39084fbd37c90df572"
+      sha256: f59351d28f49520cd3a74eb1f41c5f19ae15e53c65a3231d14af672e46510a96
       url: "https://pub.dev"
     source: hosted
-    version: "0.17.6"
+    version: "0.19.1"
   node_preamble:
     dependency: transitive
     description:
@@ -723,10 +731,10 @@ packages:
     dependency: transitive
     description:
       name: objective_c
-      sha256: "100a1c87616ab6ed41ec263b083c0ef3261ee6cd1dc3b0f35f8ddfa4f996fe52"
+      sha256: "6cb691c686fa2838c6deb34980d426145c2a5d537491cb83d463c33cdbc726ed"
       url: "https://pub.dev"
     source: hosted
-    version: "9.3.0"
+    version: "9.4.1"
   open_filex:
     dependency: "direct main"
     description:
@@ -1013,13 +1021,13 @@ packages:
     source: hosted
     version: "1.10.2"
   sqlite3:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: sqlite3
-      sha256: "56da3e13ed7d28a66f930aa2b2b29db6736a233f08283326e96321dd812030f5"
+      sha256: "9488c7d2cdb1091c91cacf7e207cff81b28bff8e366f042bad3afe7d34afe189"
       url: "https://pub.dev"
     source: hosted
-    version: "3.3.1"
+    version: "3.3.2"
   sqlite3_flutter_libs:
     dependency: "direct main"
     description:
@@ -1088,10 +1096,10 @@ packages:
     dependency: transitive
     description:
       name: synchronized
-      sha256: "63896c27e81b28f8cb4e69ead0d3e8f03f1d1e5fc531a3e579cabed6a2c7c9e5"
+      sha256: "93b153dcb6a26dcddee6ca087dd634b53e38c10b5aa163e8e49501a776456153"
       url: "https://pub.dev"
     source: hosted
-    version: "3.4.0+1"
+    version: "3.4.1"
   term_glyph:
     dependency: transitive
     description:
@@ -1288,10 +1296,10 @@ packages:
     dependency: transitive
     description:
       name: webview_flutter_android
-      sha256: ad5182eff9a550925330cb9f0cb038eddfdd5712aba8b77aa0f0400e50f6e688
+      sha256: a97db7a44f8e71af2f3971c45550a08cce1fb60059c1b8e534251e6cfb753490
       url: "https://pub.dev"
     source: hosted
-    version: "4.12.0"
+    version: "4.13.0"
   webview_flutter_platform_interface:
     dependency: transitive
     description:
@@ -1304,10 +1312,10 @@ packages:
     dependency: transitive
     description:
       name: webview_flutter_wkwebview
-      sha256: "82648217f537573e1ca9ae9952d3eacedca6ab5aee69dc84445fc763766dcea2"
+      sha256: c879dd64b87c452aa84381b244d5469da57ba7e8cca6884c7b1e0d406372c12d
       url: "https://pub.dev"
     source: hosted
-    version: "3.25.1"
+    version: "3.26.0"
   win32:
     dependency: transitive
     description:
@@ -1381,5 +1389,5 @@ packages:
     source: hosted
     version: "3.1.3"
 sdks:
-  dart: ">=3.11.0 <4.0.0"
-  flutter: ">=3.38.4"
+  dart: ">=3.12.0 <4.0.0"
+  flutter: ">=3.44.0"

pubspec.yaml

@@ -28,7 +28,7 @@ dependencies:
   flutter_riverpod: ^3.0.0
 
   # Navigation
-  go_router: ^17.2.3
+  go_router: ^17.3.0
 
   # Secure credential storage (passwords)
   flutter_secure_storage: ^10.0.0
@@ -37,7 +37,7 @@ dependencies:
   intl: ^0.20.2
 
   # File picking (compose attachments) and opening downloaded attachments
-  file_picker: ^12.0.0-beta.4
+  file_picker: ^12.0.0-beta.5
   open_filex: ^4.6.0
   mime: ^2.0.0
 
@@ -56,7 +56,7 @@ dependencies:
   flutter_markdown_plus: ^1.0.7
 
   # Background sync and local notifications
-  flutter_local_notifications: ^21.0.0
+  flutter_local_notifications: ^22.0.0
   workmanager: ^0.9.0
 
   # Stack trace chain-to-VM conversion for FlutterError.demangleStackTrace

scripts/check_coverage.dart

@@ -87,6 +87,7 @@ const _excluded = {
   'lib/ui/widgets/email_thread_tile.dart',
   'lib/ui/screens/trusted_image_senders_screen.dart',
   'lib/data/repositories/note_repository_impl.dart',
+  'lib/ui/widgets/filter_builder.dart',
   'lib/ui/widgets/thread_tile.dart',
 };
 

scripts/check_dagger_versions.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+# Verify that the Dagger version is consistent across the project.
+#
+# The Dagger CLI must speak the same protocol as the engine it talks to.  We
+# pin the version in four places (engine image in DAGGER.md, the CLI in
+# flake.nix, the CLI in the Forgejo runner Dockerfile, and the module
+# engineVersion in ci/dagger.json).  This script fails if any of them drift.
+set -euo pipefail
+
+ROOT=$(git rev-parse --show-toplevel)
+
+# ci/dagger.json — strip leading "v" for comparison.
+dagger_json=$(grep -oE '"engineVersion"[[:space:]]*:[[:space:]]*"[^"]+"' "$ROOT/ci/dagger.json" \
+  | sed -E 's/.*"v?([^"]+)"$/\1/')
+
+# .forgejo/Dockerfile — DAGGER_VERSION env on the install line.
+dockerfile=$(grep -oE 'DAGGER_VERSION=[0-9]+\.[0-9]+\.[0-9]+' "$ROOT/.forgejo/Dockerfile" \
+  | head -n1 \
+  | cut -d= -f2)
+
+# DAGGER.md — engine image tag in the example systemd unit.
+dagger_md=$(grep -oE 'dagger/nix/v[0-9]+\.[0-9]+\.[0-9]+' "$ROOT/DAGGER.md" \
+  | head -n1 \
+  | sed -E 's@.*/v@@')
+
+printf 'ci/dagger.json    engineVersion = v%s\n' "$dagger_json"
+printf '.forgejo/Dockerf. DAGGER_VERSION= %s\n'  "$dockerfile"
+printf 'DAGGER.md         engine tag    = v%s\n' "$dagger_md"
+
+for v in "$dockerfile" "$dagger_md"; do
+  if [ -z "$v" ]; then
+    echo "ERROR: failed to parse a Dagger version reference." >&2
+    exit 1
+  fi
+  if [ "$v" != "$dagger_json" ]; then
+    echo "" >&2
+    echo "ERROR: Dagger versions are out of sync." >&2
+    echo "  Align ci/dagger.json, .forgejo/Dockerfile and DAGGER.md to the same version." >&2
+    exit 1
+  fi
+done
+
+echo "Dagger versions aligned (v$dagger_json)."

scripts/deploy_playstore.py

@@ -1,5 +1,11 @@
 #!/usr/bin/env python3
-"""Upload an Android App Bundle to the Google Play Store internal track."""
+"""Upload an Android App Bundle to the Google Play Store.
+
+The bundle is published to every track in ``TRACKS`` within a single Play edit,
+so internal testing and closed testing share the same version code. ``alpha``
+is what the Play Console labels "Closed testing"; publishing there removes the
+need to manually drag-and-drop the AAB into the closed-testing release form.
+"""
 
 import json
 import os
@@ -11,7 +17,7 @@ from google.oauth2 import service_account
 
 PACKAGE_NAME = "de.sharedinbox.mua"
 AAB_PATH = "build/app/outputs/bundle/release/app-release.aab"
-TRACK = "internal"
+TRACKS = ("internal", "alpha")
 _BASE = "https://androidpublisher.googleapis.com/androidpublisher/v3/applications"
 _UPLOAD_BASE = "https://androidpublisher.googleapis.com/upload/androidpublisher/v3/applications"
 _MAX_UPLOAD_ATTEMPTS = 3
@@ -94,19 +100,20 @@ def main():
     version_code = bundle["versionCode"]
     print(f"Uploaded AAB, version code: {version_code}")
 
-    track_resp = session.put(
-        f"{_BASE}/{PACKAGE_NAME}/edits/{edit_id}/tracks/{TRACK}",
-        json={"releases": [{"versionCodes": [version_code], "status": "completed"}]},
-        timeout=30,
-    )
-    track_resp.raise_for_status()
+    for track in TRACKS:
+        track_resp = session.put(
+            f"{_BASE}/{PACKAGE_NAME}/edits/{edit_id}/tracks/{track}",
+            json={"releases": [{"versionCodes": [version_code], "status": "completed"}]},
+            timeout=30,
+        )
+        track_resp.raise_for_status()
 
     commit_resp = session.post(
         f"{_BASE}/{PACKAGE_NAME}/edits/{edit_id}:commit",
         timeout=30,
     )
     commit_resp.raise_for_status()
-    print(f"Deployed version {version_code} to {TRACK} track")
+    print(f"Deployed version {version_code} to tracks: {', '.join(TRACKS)}")
 
 
 if __name__ == "__main__":

scripts/test_deploy_playstore.py

@@ -95,6 +95,30 @@ class TestMainHappyPath(unittest.TestCase):
         track_call = session.put.call_args_list[0]
         self.assertIn("/tracks/", track_call[0][0])
 
+    def test_updates_all_configured_tracks(self):
+        session = self._run_main()
+        track_urls = [c[0][0] for c in session.put.call_args_list]
+        self.assertEqual(len(track_urls), len(deploy_playstore.TRACKS))
+        for track in deploy_playstore.TRACKS:
+            self.assertTrue(
+                any(url.endswith(f"/tracks/{track}") for url in track_urls),
+                f"no PUT to /tracks/{track} (saw {track_urls})",
+            )
+
+    def test_commits_after_all_track_updates(self):
+        session = self._run_main()
+        # All PUTs are track updates; commit is the second POST after the
+        # initial edit-create. Verify PUTs precede the commit by checking
+        # mock_calls order across both methods.
+        method_order = [c[0] for c in session.method_calls]
+        commit_idx = next(
+            i for i, m in enumerate(method_order)
+            if m == "post" and ":commit" in session.method_calls[i][1][0]
+        )
+        put_indices = [i for i, m in enumerate(method_order) if m == "put"]
+        self.assertEqual(len(put_indices), len(deploy_playstore.TRACKS))
+        self.assertTrue(all(i < commit_idx for i in put_indices))
+
 
 class TestUploadRetry(unittest.TestCase):
     def _run_main(self, upload_side_effects, sleep_mock=None):

test/backend/account_sync_manager_test.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:enough_mail/enough_mail.dart' as imap;
 import 'package:flutter_test/flutter_test.dart';
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/account.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/core/models/mailbox.dart';
@@ -272,6 +273,13 @@ class _FakeEmails implements EmailRepository {
   @override
   Future<List<Email>> searchEmailsGlobal(String? a, String q) async => [];
 
+  @override
+  Future<List<Email>> searchEmailsStructured(
+    String? a,
+    FilterGroup f,
+  ) async =>
+      [];
+
   @override
   Future<List<Email>> getEmailsByAddress(String? a, String address) async => [];
 

test/backend/chaos_monkey_test.dart

@@ -10,6 +10,9 @@
 //   CHAOS_ROUNDS  (default: 30) — number of random operations to perform
 //   CHAOS_SEED    (default: current epoch ms) — seed for reproducibility
 
+@Tags(['nightly'])
+library;
+
 import 'dart:io';
 import 'dart:math';
 
@@ -132,7 +135,7 @@ void main() {
   tearDown(() => db.close());
 
   test('chaos monkey — random operations do not crash the repository',
-      () async {
+      timeout: Timeout.none, () async {
     final seedStr = _env('CHAOS_SEED');
     final seed = seedStr.isEmpty
         ? DateTime.now().millisecondsSinceEpoch

test/backend/email_repository_imap_test.dart

@@ -433,6 +433,7 @@ void main() {
 
     final r = makeRepo();
     await r.accounts.addAccount(account, userPass);
+    await r.emails.syncEmails('test', 'INBOX');
 
     final results = await r.emails.searchEmails(
       'test',

test/unit/account_sync_manager_test.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 
 import 'package:flutter/services.dart' show MissingPluginException;
 import 'package:mockito/annotations.dart';
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/account.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/core/models/mailbox.dart';
@@ -137,6 +138,12 @@ class FakeEmailRepository implements EmailRepository {
   @override
   Future<List<Email>> searchEmailsGlobal(String? a, String q) async => [];
   @override
+  Future<List<Email>> searchEmailsStructured(
+    String? a,
+    FilterGroup f,
+  ) async =>
+      [];
+  @override
   Future<List<Email>> getEmailsByAddress(String? a, String address) async => [];
   @override
   Future<List<EmailAddress>> searchAddresses(

test/unit/account_sync_manager_test.mocks.dart

@@ -7,6 +7,7 @@ import 'dart:async' as _i5;
 
 import 'package:mockito/mockito.dart' as _i1;
 import 'package:mockito/src/dummies.dart' as _i7;
+import 'package:sharedinbox/core/filter/filter_expression.dart' as _i10;
 import 'package:sharedinbox/core/models/account.dart' as _i6;
 import 'package:sharedinbox/core/models/email.dart' as _i3;
 import 'package:sharedinbox/core/models/mailbox.dart' as _i2;
@@ -545,6 +546,22 @@ class MockEmailRepository extends _i1.Mock implements _i9.EmailRepository {
         returnValue: _i5.Future<List<_i3.Email>>.value(<_i3.Email>[]),
       ) as _i5.Future<List<_i3.Email>>);
 
+  @override
+  _i5.Future<List<_i3.Email>> searchEmailsStructured(
+    String? accountId,
+    _i10.FilterGroup? filter,
+  ) =>
+      (super.noSuchMethod(
+        Invocation.method(
+          #searchEmailsStructured,
+          [
+            accountId,
+            filter,
+          ],
+        ),
+        returnValue: _i5.Future<List<_i3.Email>>.value(<_i3.Email>[]),
+      ) as _i5.Future<List<_i3.Email>>);
+
   @override
   _i5.Future<List<_i3.Email>> getEmailsByAddress(
     String? accountId,

test/unit/email_repository_impl_test.dart

@@ -7,6 +7,7 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:http/http.dart' as http;
 import 'package:http/testing.dart';
 
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/account.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/data/db/database.dart' hide Account;
@@ -262,6 +263,50 @@ void main() {
       expect(emails.map((e) => e.uid).toList(), [3, 2, 1]);
     });
 
+    test('same UID in different mailboxes yields independent emails', () async {
+      // Regression test for the UID collision bug: IMAP UIDs are mailbox-scoped,
+      // so UID 50 in INBOX and UID 50 in Archive must get distinct local IDs.
+      final r = _makeRepos();
+      await r.accounts.addAccount(_account, 'pw');
+
+      // New ID format: accountId:mailboxPath:uid
+      await r.db.into(r.db.emails).insert(
+            EmailsCompanion.insert(
+              id: 'acc-1:INBOX:50',
+              accountId: 'acc-1',
+              mailboxPath: 'INBOX',
+              uid: 50,
+              receivedAt: DateTime(2024),
+            ),
+          );
+      await r.db.into(r.db.emails).insert(
+            EmailsCompanion.insert(
+              id: 'acc-1:Archive:50',
+              accountId: 'acc-1',
+              mailboxPath: 'Archive',
+              uid: 50,
+              receivedAt: DateTime(2024, 1, 2),
+            ),
+          );
+
+      final inboxEmail = await r.emails.getEmail('acc-1:INBOX:50');
+      expect(inboxEmail, isNotNull);
+      expect(inboxEmail!.mailboxPath, 'INBOX');
+
+      final archiveEmail = await r.emails.getEmail('acc-1:Archive:50');
+      expect(archiveEmail, isNotNull);
+      expect(archiveEmail!.mailboxPath, 'Archive');
+
+      final inboxEmails = await r.emails.observeEmails('acc-1', 'INBOX').first;
+      expect(inboxEmails, hasLength(1));
+      expect(inboxEmails.first.id, 'acc-1:INBOX:50');
+
+      final archiveEmails =
+          await r.emails.observeEmails('acc-1', 'Archive').first;
+      expect(archiveEmails, hasLength(1));
+      expect(archiveEmails.first.id, 'acc-1:Archive:50');
+    });
+
     test('syncEmails propagates IMAP error', () async {
       final r = _makeRepos();
       await r.accounts.addAccount(_account, 'pw');
@@ -514,8 +559,7 @@ void main() {
             ),
           );
 
-      final results =
-          await r.emails.searchEmailsGlobal(null, 'urgent');
+      final results = await r.emails.searchEmailsGlobal(null, 'urgent');
       expect(results, hasLength(1));
       expect(results.first.subject, 'Weekly report');
     });
@@ -569,13 +613,161 @@ void main() {
             ),
           );
 
-      final results =
-          await r.emails.searchEmails('acc-1', 'INBOX', 'client');
+      final results = await r.emails.searchEmails('acc-1', 'INBOX', 'client');
       expect(results, hasLength(1));
       expect(results.first.subject, 'Project update');
       expect(results.first.mailboxPath, 'INBOX');
     });
 
+    test('searchEmailsGlobal returns results sorted by receivedAt descending',
+        () async {
+      final r = _makeRepos();
+      await r.accounts.addAccount(_account, 'pw');
+
+      await r.db.into(r.db.emails).insert(
+            EmailsCompanion.insert(
+              id: 'acc-1:1',
+              accountId: 'acc-1',
+              mailboxPath: 'INBOX',
+              uid: 1,
+              subject: const Value('Older report'),
+              receivedAt: DateTime(2024),
+            ),
+          );
+      await r.db.into(r.db.emails).insert(
+            EmailsCompanion.insert(
+              id: 'acc-1:2',
+              accountId: 'acc-1',
+              mailboxPath: 'INBOX',
+              uid: 2,
+              subject: const Value('Newer report'),
+              receivedAt: DateTime(2024, 6),
+            ),
+          );
+
+      final results = await r.emails.searchEmailsGlobal(null, 'report');
+      expect(results, hasLength(2));
+      expect(results[0].subject, 'Newer report');
+      expect(results[1].subject, 'Older report');
+    });
+
+    test('searchEmails returns results sorted by receivedAt descending',
+        () async {
+      final r = _makeRepos();
+      await r.accounts.addAccount(_account, 'pw');
+
+      await r.db.into(r.db.emails).insert(
+            EmailsCompanion.insert(
+              id: 'acc-1:1',
+              accountId: 'acc-1',
+              mailboxPath: 'INBOX',
+              uid: 1,
+              subject: const Value('Older meeting'),
+              receivedAt: DateTime(2024),
+            ),
+          );
+      await r.db.into(r.db.emails).insert(
+            EmailsCompanion.insert(
+              id: 'acc-1:2',
+              accountId: 'acc-1',
+              mailboxPath: 'INBOX',
+              uid: 2,
+              subject: const Value('Newer meeting'),
+              receivedAt: DateTime(2024, 6),
+            ),
+          );
+
+      final results = await r.emails.searchEmails('acc-1', 'INBOX', 'meeting');
+      expect(results, hasLength(2));
+      expect(results[0].subject, 'Newer meeting');
+      expect(results[1].subject, 'Older meeting');
+    });
+
+    test(
+      'searchEmailsStructured returns results sorted by receivedAt descending',
+      () async {
+        final r = _makeRepos();
+        await r.accounts.addAccount(_account, 'pw');
+
+        await r.db.into(r.db.emails).insert(
+              EmailsCompanion.insert(
+                id: 'acc-1:1',
+                accountId: 'acc-1',
+                mailboxPath: 'INBOX',
+                uid: 1,
+                subject: const Value('Older invoice'),
+                receivedAt: DateTime(2024),
+              ),
+            );
+        await r.db.into(r.db.emails).insert(
+              EmailsCompanion.insert(
+                id: 'acc-1:2',
+                accountId: 'acc-1',
+                mailboxPath: 'INBOX',
+                uid: 2,
+                subject: const Value('Newer invoice'),
+                receivedAt: DateTime(2024, 6),
+              ),
+            );
+
+        final filter = FilterGroup(
+          operator: FilterOperator.and_,
+          children: [
+            FilterLeaf(
+              field: FilterField.subject,
+              comparison: FilterComparison.contains,
+              value: 'invoice',
+            ),
+          ],
+        );
+        final results = await r.emails.searchEmailsStructured(null, filter);
+        expect(results, hasLength(2));
+        expect(results[0].subject, 'Newer invoice');
+        expect(results[1].subject, 'Older invoice');
+      },
+    );
+
+    test(
+      'getEmailsByAddress returns results sorted by receivedAt descending',
+      () async {
+        final r = _makeRepos();
+        await r.accounts.addAccount(_account, 'pw');
+
+        await r.db.into(r.db.emails).insert(
+              EmailsCompanion.insert(
+                id: 'acc-1:1',
+                accountId: 'acc-1',
+                mailboxPath: 'INBOX',
+                uid: 1,
+                subject: const Value('Older hello'),
+                receivedAt: DateTime(2024),
+                fromJson: const Value(
+                  '[{"name":"Bob","email":"bob@example.com"}]',
+                ),
+              ),
+            );
+        await r.db.into(r.db.emails).insert(
+              EmailsCompanion.insert(
+                id: 'acc-1:2',
+                accountId: 'acc-1',
+                mailboxPath: 'INBOX',
+                uid: 2,
+                subject: const Value('Newer hello'),
+                receivedAt: DateTime(2024, 6),
+                fromJson: const Value(
+                  '[{"name":"Bob","email":"bob@example.com"}]',
+                ),
+              ),
+            );
+
+        final results =
+            await r.emails.getEmailsByAddress(null, 'bob@example.com');
+        expect(results, hasLength(2));
+        expect(results[0].subject, 'Newer hello');
+        expect(results[1].subject, 'Older hello');
+      },
+    );
+
     test(
       'searchAddresses returns results sorted by most recently used',
       () async {

test/unit/filter_and_sieve_test.dart

@@ -0,0 +1,337 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:sharedinbox/core/filter/filter_expression.dart';
+import 'package:sharedinbox/core/filter/filter_sieve_converter.dart';
+import 'package:sharedinbox/core/sieve/sieve_actions.dart';
+import 'package:sharedinbox/core/sieve/sieve_serializer.dart';
+
+void main() {
+  group('FilterGroup', () {
+    test('empty() creates an empty group', () {
+      final g = FilterGroup.empty();
+      expect(g.isEmpty, isTrue);
+      expect(g.children, isEmpty);
+      expect(g.operator, FilterOperator.and_);
+    });
+
+    test('non-empty group is not isEmpty', () {
+      final g = FilterGroup(
+        operator: FilterOperator.and_,
+        children: [
+          FilterLeaf(
+            field: FilterField.from_,
+            comparison: FilterComparison.contains,
+            value: 'test',
+          ),
+        ],
+      );
+      expect(g.isEmpty, isFalse);
+    });
+
+    test('copyWith changes operator', () {
+      final g = FilterGroup.empty().copyWith(operator: FilterOperator.or_);
+      expect(g.operator, FilterOperator.or_);
+    });
+
+    test('copyWith changes children', () {
+      final leaf = FilterLeaf(
+        field: FilterField.subject,
+        comparison: FilterComparison.contains,
+        value: 'hello',
+      );
+      final g = FilterGroup.empty().copyWith(children: [leaf]);
+      expect(g.children, hasLength(1));
+    });
+  });
+
+  group('FilterLeaf', () {
+    test('copyWith changes field', () {
+      final leaf = FilterLeaf(
+        field: FilterField.from_,
+        comparison: FilterComparison.contains,
+        value: 'x',
+      );
+      final updated = leaf.copyWith(field: FilterField.to);
+      expect(updated.field, FilterField.to);
+      expect(updated.comparison, FilterComparison.contains);
+      expect(updated.value, 'x');
+    });
+
+    test('copyWith changes value', () {
+      final leaf = FilterLeaf(
+        field: FilterField.subject,
+        comparison: FilterComparison.is_,
+        value: 'old',
+      );
+      final updated = leaf.copyWith(value: 'new');
+      expect(updated.value, 'new');
+      expect(updated.field, FilterField.subject);
+    });
+
+    test('size field allows over/under comparisons', () {
+      expect(
+        FilterField.size.allowedComparisons,
+        containsAll([FilterComparison.over, FilterComparison.under]),
+      );
+    });
+
+    test('address fields do not allow over/under', () {
+      for (final f in [FilterField.from_, FilterField.to, FilterField.cc]) {
+        expect(f.allowedComparisons, isNot(contains(FilterComparison.over)));
+        expect(f.allowedComparisons, isNot(contains(FilterComparison.under)));
+      }
+    });
+  });
+
+  group('SieveSerializer', () {
+    final ser = SieveSerializer();
+
+    test('empty filter with keep action', () {
+      final script = ser.serialize(FilterGroup.empty(), [KeepAction()]);
+      expect(script, contains('keep;'));
+      expect(script, isNot(contains('if ')));
+    });
+
+    test('single from-contains condition', () {
+      final group = FilterGroup(
+        operator: FilterOperator.and_,
+        children: [
+          FilterLeaf(
+            field: FilterField.from_,
+            comparison: FilterComparison.contains,
+            value: 'alice',
+          ),
+        ],
+      );
+      final script = ser.serialize(group, [FileIntoAction('Work')]);
+      expect(script, contains('require'));
+      expect(script, contains('fileinto'));
+      expect(script, contains('"Work"'));
+      expect(script, contains(':contains'));
+      expect(script, contains('"from"'));
+      expect(script, contains('"alice"'));
+    });
+
+    test('AND group serialises as allof', () {
+      final group = FilterGroup(
+        operator: FilterOperator.and_,
+        children: [
+          FilterLeaf(
+            field: FilterField.subject,
+            comparison: FilterComparison.contains,
+            value: 'invoice',
+          ),
+          FilterLeaf(
+            field: FilterField.from_,
+            comparison: FilterComparison.contains,
+            value: 'supplier',
+          ),
+        ],
+      );
+      final script = ser.serialize(group, [KeepAction()]);
+      expect(script, contains('allof'));
+    });
+
+    test('OR group serialises as anyof', () {
+      final group = FilterGroup(
+        operator: FilterOperator.or_,
+        children: [
+          FilterLeaf(
+            field: FilterField.subject,
+            comparison: FilterComparison.contains,
+            value: 'a',
+          ),
+          FilterLeaf(
+            field: FilterField.subject,
+            comparison: FilterComparison.contains,
+            value: 'b',
+          ),
+        ],
+      );
+      final script = ser.serialize(group, [DiscardAction()]);
+      expect(script, contains('anyof'));
+      expect(script, contains('discard;'));
+    });
+
+    test('size over condition', () {
+      final group = FilterGroup(
+        operator: FilterOperator.and_,
+        children: [
+          FilterLeaf(
+            field: FilterField.size,
+            comparison: FilterComparison.over,
+            value: '1000000',
+          ),
+        ],
+      );
+      final script = ser.serialize(group, [DiscardAction()]);
+      expect(script, contains('size :over 1000000'));
+    });
+
+    test('mark-as-seen action emits setflag', () {
+      final group = FilterGroup(
+        operator: FilterOperator.and_,
+        children: [
+          FilterLeaf(
+            field: FilterField.subject,
+            comparison: FilterComparison.contains,
+            value: 'newsletter',
+          ),
+        ],
+      );
+      final script = ser.serialize(group, [MarkAsSeenAction()]);
+      expect(script, contains('setflag'));
+      expect(script, contains(r'\Seen'));
+    });
+
+    test('escapes quotes in values', () {
+      final group = FilterGroup(
+        operator: FilterOperator.and_,
+        children: [
+          FilterLeaf(
+            field: FilterField.subject,
+            comparison: FilterComparison.contains,
+            value: 'say "hello"',
+          ),
+        ],
+      );
+      final script = ser.serialize(group, [KeepAction()]);
+      expect(script, contains(r'say \"hello\"'));
+    });
+  });
+
+  group('FilterSieveConverter', () {
+    final conv = FilterSieveConverter();
+
+    test('returns null for empty script', () {
+      expect(conv.parse(''), isNull);
+    });
+
+    test('parses simple address test', () {
+      const script = '''
+if address :contains "from" "alice@example.com" {
+  keep;
+}''';
+      final result = conv.parse(script);
+      expect(result, isNotNull);
+      expect(result!.group.children, hasLength(1));
+      final leaf = result.group.children.first as FilterLeaf;
+      expect(leaf.field, FilterField.from_);
+      expect(leaf.comparison, FilterComparison.contains);
+      expect(leaf.value, 'alice@example.com');
+      expect(result.actions, hasLength(1));
+      expect(result.actions.first, isA<KeepAction>());
+    });
+
+    test('parses subject header test', () {
+      const script = '''
+if header :is "subject" "Hello" {
+  fileinto "Inbox";
+}''';
+      final result = conv.parse(script);
+      expect(result, isNotNull);
+      final leaf = result!.group.children.first as FilterLeaf;
+      expect(leaf.field, FilterField.subject);
+      expect(leaf.comparison, FilterComparison.is_);
+      expect(leaf.value, 'Hello');
+      final action = result.actions.first as FileIntoAction;
+      expect(action.folder, 'Inbox');
+    });
+
+    test('parses allof group as AND', () {
+      const script = '''
+if allof(
+  address :contains "from" "alice",
+  header :contains "subject" "invoice"
+) {
+  keep;
+}''';
+      final result = conv.parse(script);
+      expect(result, isNotNull);
+      expect(result!.group.operator, FilterOperator.and_);
+      expect(result.group.children, hasLength(2));
+    });
+
+    test('parses anyof group as OR', () {
+      const script = '''
+if anyof(
+  address :contains "from" "a",
+  address :contains "from" "b"
+) {
+  discard;
+}''';
+      final result = conv.parse(script);
+      expect(result, isNotNull);
+      expect(result!.group.operator, FilterOperator.or_);
+      expect(result.actions.first, isA<DiscardAction>());
+    });
+
+    test('parses size over test', () {
+      const script = '''
+if size :over 500000 {
+  discard;
+}''';
+      final result = conv.parse(script);
+      expect(result, isNotNull);
+      final leaf = result!.group.children.first as FilterLeaf;
+      expect(leaf.field, FilterField.size);
+      expect(leaf.comparison, FilterComparison.over);
+      expect(leaf.value, '500000');
+    });
+
+    test('parses setflag \\\\Seen as MarkAsSeenAction', () {
+      const script = r'''
+if header :contains "subject" "newsletter" {
+  setflag "\\Seen";
+}''';
+      final result = conv.parse(script);
+      expect(result, isNotNull);
+      expect(result!.actions.first, isA<MarkAsSeenAction>());
+    });
+
+    test('returns null for unsupported test', () {
+      const script = '''
+if exists "X-Custom-Header" {
+  keep;
+}''';
+      expect(conv.parse(script), isNull);
+    });
+
+    test('round-trips through serializer', () {
+      final group = FilterGroup(
+        operator: FilterOperator.and_,
+        children: [
+          FilterLeaf(
+            field: FilterField.from_,
+            comparison: FilterComparison.contains,
+            value: 'alice@example.com',
+          ),
+          FilterLeaf(
+            field: FilterField.subject,
+            comparison: FilterComparison.contains,
+            value: 'invoice',
+          ),
+        ],
+      );
+      final actions = <SieveAction>[FileIntoAction('Work')];
+      final script = SieveSerializer().serialize(group, actions);
+      final result = conv.parse(script);
+      expect(result, isNotNull);
+      expect(result!.group.operator, FilterOperator.and_);
+      expect(result.group.children, hasLength(2));
+      expect(result.actions, hasLength(1));
+      expect((result.actions.first as FileIntoAction).folder, 'Work');
+    });
+
+    test('parses require block and ignores it', () {
+      const script = '''
+require ["fileinto"];
+if address :contains "from" "bob" {
+  fileinto "Archive";
+}''';
+      final result = conv.parse(script);
+      expect(result, isNotNull);
+      final leaf = result!.group.children.first as FilterLeaf;
+      expect(leaf.value, 'bob');
+    });
+  });
+}

test/unit/glob_match_test.dart

@@ -0,0 +1,50 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:sharedinbox/core/utils/glob_match.dart';
+
+void main() {
+  group('globMatch', () {
+    test('exact match (no wildcards)', () {
+      expect(globMatch('alice@example.com', 'alice@example.com'), isTrue);
+      expect(globMatch('alice@example.com', 'bob@example.com'), isFalse);
+    });
+
+    test('* matches any domain wildcard', () {
+      expect(globMatch('alice@example.com', '*@example.com'), isTrue);
+      expect(globMatch('bob@example.com', '*@example.com'), isTrue);
+      expect(globMatch('alice@other.com', '*@example.com'), isFalse);
+    });
+
+    test('* matches zero or more characters', () {
+      expect(
+        globMatch('newsletter@news.example.com', '*@*.example.com'),
+        isTrue,
+      );
+      expect(globMatch('alice@example.com', 'alice*'), isTrue);
+      expect(globMatch('alice@example.com', '*example*'), isTrue);
+    });
+
+    test('? matches exactly one character', () {
+      expect(globMatch('alice@example.com', 'alice@exampl?.com'), isTrue);
+      expect(globMatch('alice@example.com', 'alice@exampl??.com'), isFalse);
+    });
+
+    test('case-insensitive comparison', () {
+      expect(globMatch('Alice@Example.COM', '*@example.com'), isTrue);
+      expect(globMatch('alice@example.com', '*@EXAMPLE.COM'), isTrue);
+    });
+
+    test('no wildcards — mismatch is false', () {
+      expect(globMatch('alice@example.com', 'alice@other.com'), isFalse);
+    });
+
+    test('bare * matches everything', () {
+      expect(globMatch('alice@example.com', '*'), isTrue);
+      expect(globMatch('', '*'), isTrue);
+    });
+
+    test('empty pattern only matches empty string', () {
+      expect(globMatch('', ''), isTrue);
+      expect(globMatch('alice@example.com', ''), isFalse);
+    });
+  });
+}

test/unit/migration_test.dart

@@ -14,7 +14,7 @@ void main() {
   group('Migration', () {
     test('schemaVersion matches expected value', () async {
       final db = AppDatabase(NativeDatabase.memory());
-      expect(db.schemaVersion, 40);
+      expect(db.schemaVersion, 41);
       await db.close();
     });
 
@@ -435,7 +435,184 @@ void main() {
       },
     );
 
-    test('fresh install creates all tables at schemaVersion 40', () async {
+    test('v40→v41: IMAP email IDs gain mailboxPath segment', () async {
+      final dbFile = File('test_migration_v40.db');
+      if (dbFile.existsSync()) dbFile.deleteSync();
+
+      final rawDb = sqlite.sqlite3.open(dbFile.path);
+      rawDb.execute('''
+        CREATE TABLE accounts (
+          id TEXT NOT NULL PRIMARY KEY,
+          display_name TEXT NOT NULL,
+          email TEXT NOT NULL,
+          imap_host TEXT NOT NULL DEFAULT '',
+          imap_port INTEGER NOT NULL DEFAULT 993,
+          imap_ssl INTEGER NOT NULL DEFAULT 1,
+          smtp_host TEXT NOT NULL DEFAULT '',
+          smtp_port INTEGER NOT NULL DEFAULT 465,
+          smtp_ssl INTEGER NOT NULL DEFAULT 1,
+          account_type TEXT NOT NULL DEFAULT 'imap',
+          jmap_url TEXT NULL,
+          username TEXT NOT NULL DEFAULT '',
+          verbose INTEGER NOT NULL DEFAULT 0,
+          manage_sieve_host TEXT NOT NULL DEFAULT '',
+          manage_sieve_port INTEGER NOT NULL DEFAULT 4190,
+          manage_sieve_ssl INTEGER NOT NULL DEFAULT 1,
+          manage_sieve_available INTEGER NULL
+        )
+      ''');
+      rawDb.execute('''
+        CREATE TABLE emails (
+          id TEXT NOT NULL PRIMARY KEY,
+          account_id TEXT NOT NULL REFERENCES accounts (id) ON DELETE CASCADE,
+          mailbox_path TEXT NOT NULL,
+          uid INTEGER NOT NULL,
+          subject TEXT NULL,
+          sent_at INTEGER NULL,
+          received_at INTEGER NOT NULL,
+          from_json TEXT NOT NULL DEFAULT '[]',
+          to_addresses TEXT NOT NULL DEFAULT '[]',
+          cc_json TEXT NOT NULL DEFAULT '[]',
+          preview TEXT NULL,
+          is_seen INTEGER NOT NULL DEFAULT 0,
+          is_flagged INTEGER NOT NULL DEFAULT 0,
+          has_attachment INTEGER NOT NULL DEFAULT 0,
+          thread_id TEXT NULL,
+          message_id TEXT NULL,
+          in_reply_to TEXT NULL,
+          "references" TEXT NULL,
+          snoozed_until INTEGER NULL,
+          snoozed_from_mailbox_path TEXT NULL,
+          list_unsubscribe_header TEXT NULL
+        )
+      ''');
+      rawDb.execute('''
+        CREATE TABLE email_bodies (
+          email_id TEXT NOT NULL PRIMARY KEY REFERENCES emails (id) ON DELETE CASCADE,
+          text_body TEXT NULL,
+          html_body TEXT NULL,
+          attachments_json TEXT NOT NULL DEFAULT '[]',
+          cached_at INTEGER NULL,
+          headers_json TEXT NULL,
+          mime_tree_json TEXT NULL
+        )
+      ''');
+      rawDb.execute('''
+        CREATE TABLE threads (
+          account_id TEXT NOT NULL REFERENCES accounts (id) ON DELETE CASCADE,
+          mailbox_path TEXT NOT NULL,
+          id TEXT NOT NULL,
+          subject TEXT NULL,
+          latest_date INTEGER NOT NULL,
+          message_count INTEGER NOT NULL DEFAULT 1,
+          has_unread INTEGER NOT NULL DEFAULT 0,
+          is_flagged INTEGER NOT NULL DEFAULT 0,
+          participants_json TEXT NOT NULL DEFAULT '[]',
+          preview TEXT NULL,
+          latest_email_id TEXT NOT NULL,
+          email_ids_json TEXT NOT NULL DEFAULT '[]',
+          PRIMARY KEY (account_id, mailbox_path, id)
+        )
+      ''');
+      rawDb.execute('''
+        CREATE TABLE pending_changes (
+          id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+          account_id TEXT NOT NULL REFERENCES accounts (id) ON DELETE CASCADE,
+          resource_type TEXT NOT NULL,
+          resource_id TEXT NOT NULL,
+          change_type TEXT NOT NULL,
+          payload TEXT NOT NULL,
+          created_at INTEGER NOT NULL,
+          attempts INTEGER NOT NULL DEFAULT 0,
+          last_error TEXT NULL
+        )
+      ''');
+
+      // Insert an IMAP account.
+      rawDb.execute(
+        "INSERT INTO accounts (id, display_name, email) VALUES ('acc-1', 'Alice', 'alice@example.com')",
+      );
+
+      // Two emails with the same UID but in different mailboxes — old format.
+      final now = DateTime.now().millisecondsSinceEpoch ~/ 1000;
+      rawDb.execute(
+        'INSERT INTO emails (id, account_id, mailbox_path, uid, received_at, thread_id) '
+        "VALUES ('acc-1:50', 'acc-1', 'INBOX', 50, $now, 'acc-1:50')",
+      );
+      rawDb.execute(
+        'INSERT INTO emails (id, account_id, mailbox_path, uid, received_at) '
+        "VALUES ('acc-1:50-arch', 'acc-1', 'Archive', 50, $now)",
+      );
+      // A third email with a Message-ID-based thread_id (should not be changed).
+      rawDb.execute(
+        'INSERT INTO emails (id, account_id, mailbox_path, uid, received_at, thread_id) '
+        "VALUES ('acc-1:99', 'acc-1', 'INBOX', 99, $now, '<original@example.com>')",
+      );
+
+      // Email body for the first email.
+      rawDb.execute(
+        "INSERT INTO email_bodies (email_id, text_body) VALUES ('acc-1:50', 'body text')",
+      );
+
+      // Thread for the first email (old-format IDs).
+      rawDb.execute(
+        'INSERT INTO threads (account_id, mailbox_path, id, latest_date, latest_email_id, email_ids_json) '
+        "VALUES ('acc-1', 'INBOX', 'acc-1:50', $now, 'acc-1:50', '[\"acc-1:50\"]')",
+      );
+
+      // A pending change referencing the first email's old ID.
+      rawDb.execute(
+        'INSERT INTO pending_changes (account_id, resource_type, resource_id, change_type, payload, created_at) '
+        "VALUES ('acc-1', 'Email', 'acc-1:50', 'flag_seen', '{\"seen\":true}', $now)",
+      );
+
+      rawDb.execute('PRAGMA user_version = 40');
+      rawDb.close();
+
+      // Open with Drift to trigger the migration.
+      final db = AppDatabase(NativeDatabase(dbFile));
+      await db.select(db.accounts).get();
+
+      // emails.id should now use the accountId:mailboxPath:uid format.
+      final emailRows = await db.select(db.emails).get();
+      final emailIds = emailRows.map((r) => r.id).toSet();
+      expect(emailIds, contains('acc-1:INBOX:50'));
+      expect(emailIds, contains('acc-1:Archive:50'));
+      expect(emailIds, contains('acc-1:INBOX:99'));
+      // Old-format IDs must be gone.
+      expect(emailIds, isNot(contains('acc-1:50')));
+      expect(emailIds, isNot(contains('acc-1:99')));
+
+      // email_bodies.email_id must be updated.
+      final bodyRows = await db.select(db.emailBodies).get();
+      expect(bodyRows, hasLength(1));
+      expect(bodyRows.first.emailId, 'acc-1:INBOX:50');
+
+      // thread_id where it was the email's own ID should be updated.
+      final inboxEmail = emailRows.firstWhere((r) => r.id == 'acc-1:INBOX:50');
+      expect(inboxEmail.threadId, 'acc-1:INBOX:50');
+
+      // thread_id based on a real Message-ID must be left unchanged.
+      final inboxEmail99 =
+          emailRows.firstWhere((r) => r.id == 'acc-1:INBOX:99');
+      expect(inboxEmail99.threadId, '<original@example.com>');
+
+      // threads must be rebuilt with new-format IDs.
+      final threadRows = await db.select(db.threads).get();
+      final thread = threadRows.firstWhere((t) => t.mailboxPath == 'INBOX');
+      expect(thread.latestEmailId, 'acc-1:INBOX:50');
+      expect(thread.emailIdsJson, contains('acc-1:INBOX:50'));
+
+      // pending_changes.resource_id is not updated by the migration
+      // (IMAP operations use payload uid/mailboxPath, so this is safe).
+      final changeRows = await db.select(db.pendingChanges).get();
+      expect(changeRows, hasLength(1));
+
+      await db.close();
+      if (dbFile.existsSync()) dbFile.deleteSync();
+    });
+
+    test('fresh install creates all tables at schemaVersion 41', () async {
       final db = AppDatabase(NativeDatabase.memory());
       await db.select(db.accounts).get();
 

test/unit/reliability_runner_check_now_test.dart

@@ -4,6 +4,7 @@
 // checked the _running flag (only true after start() is called).
 
 import 'package:flutter_test/flutter_test.dart';
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/account.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/core/models/mailbox.dart';
@@ -144,6 +145,12 @@ class _FakeEmails implements EmailRepository {
   @override
   Future<List<Email>> searchEmailsGlobal(String? a, String q) async => [];
   @override
+  Future<List<Email>> searchEmailsStructured(
+    String? a,
+    FilterGroup f,
+  ) async =>
+      [];
+  @override
   Future<List<Email>> getEmailsByAddress(String? a, String addr) async => [];
   @override
   Future<List<EmailAddress>> searchAddresses(

test/unit/reliability_runner_test.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'package:fake_async/fake_async.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/account.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/core/models/mailbox.dart';
@@ -140,6 +141,12 @@ class _CountingEmails implements EmailRepository {
   @override
   Future<List<Email>> searchEmailsGlobal(String? a, String q) async => [];
   @override
+  Future<List<Email>> searchEmailsStructured(
+    String? a,
+    FilterGroup f,
+  ) async =>
+      [];
+  @override
   Future<List<Email>> getEmailsByAddress(String? a, String addr) async => [];
   @override
   Future<List<EmailAddress>> searchAddresses(

test/unit/undo_service_test.mocks.dart

@@ -7,10 +7,11 @@ import 'dart:async' as _i4;
 
 import 'package:mockito/mockito.dart' as _i1;
 import 'package:mockito/src/dummies.dart' as _i5;
+import 'package:sharedinbox/core/filter/filter_expression.dart' as _i6;
 import 'package:sharedinbox/core/models/email.dart' as _i2;
-import 'package:sharedinbox/core/models/undo_action.dart' as _i7;
+import 'package:sharedinbox/core/models/undo_action.dart' as _i8;
 import 'package:sharedinbox/core/repositories/email_repository.dart' as _i3;
-import 'package:sharedinbox/core/repositories/undo_repository.dart' as _i6;
+import 'package:sharedinbox/core/repositories/undo_repository.dart' as _i7;
 
 // ignore_for_file: type=lint
 // ignore_for_file: avoid_redundant_argument_values
@@ -342,6 +343,22 @@ class MockEmailRepository extends _i1.Mock implements _i3.EmailRepository {
         returnValue: _i4.Future<List<_i2.Email>>.value(<_i2.Email>[]),
       ) as _i4.Future<List<_i2.Email>>);
 
+  @override
+  _i4.Future<List<_i2.Email>> searchEmailsStructured(
+    String? accountId,
+    _i6.FilterGroup? filter,
+  ) =>
+      (super.noSuchMethod(
+        Invocation.method(
+          #searchEmailsStructured,
+          [
+            accountId,
+            filter,
+          ],
+        ),
+        returnValue: _i4.Future<List<_i2.Email>>.value(<_i2.Email>[]),
+      ) as _i4.Future<List<_i2.Email>>);
+
   @override
   _i4.Future<List<_i2.Email>> getEmailsByAddress(
     String? accountId,
@@ -558,13 +575,13 @@ class MockEmailRepository extends _i1.Mock implements _i3.EmailRepository {
 /// A class which mocks [UndoRepository].
 ///
 /// See the documentation for Mockito's code generation for more information.
-class MockUndoRepository extends _i1.Mock implements _i6.UndoRepository {
+class MockUndoRepository extends _i1.Mock implements _i7.UndoRepository {
   MockUndoRepository() {
     _i1.throwOnMissingStub(this);
   }
 
   @override
-  _i4.Future<void> saveAction(_i7.UndoAction? action) => (super.noSuchMethod(
+  _i4.Future<void> saveAction(_i8.UndoAction? action) => (super.noSuchMethod(
         Invocation.method(
           #saveAction,
           [action],
@@ -584,15 +601,15 @@ class MockUndoRepository extends _i1.Mock implements _i6.UndoRepository {
       ) as _i4.Future<void>);
 
   @override
-  _i4.Future<List<_i7.UndoAction>> getHistory({int? limit = 10}) =>
+  _i4.Future<List<_i8.UndoAction>> getHistory({int? limit = 10}) =>
       (super.noSuchMethod(
         Invocation.method(
           #getHistory,
           [],
           {#limit: limit},
         ),
-        returnValue: _i4.Future<List<_i7.UndoAction>>.value(<_i7.UndoAction>[]),
-      ) as _i4.Future<List<_i7.UndoAction>>);
+        returnValue: _i4.Future<List<_i8.UndoAction>>.value(<_i8.UndoAction>[]),
+      ) as _i4.Future<List<_i8.UndoAction>>);
 
   @override
   _i4.Future<void> clearHistory() => (super.noSuchMethod(

test/widget/about_screen_test.dart

@@ -50,7 +50,10 @@ Widget _buildScreen({List<Account> accounts = const []}) {
         FakeAccountRepository(accounts),
       ),
     ],
-    child: const MaterialApp(home: AboutScreen()),
+    child: MaterialApp(
+      theme: ThemeData(splashFactory: NoSplash.splashFactory),
+      home: const AboutScreen(),
+    ),
   );
 }
 

test/widget/email_detail_screen_test.dart

@@ -81,7 +81,7 @@ void main() {
       expect(find.byType(CircularProgressIndicator), findsOneWidget);
     });
 
-    testWidgets('shows subject in app bar after data loads', (tester) async {
+    testWidgets('shows subject in email header section', (tester) async {
       final email = testEmail(subject: 'Project update');
       const body = EmailBody(
         emailId: 'acc-1:42',
@@ -106,8 +106,8 @@ void main() {
       );
       await tester.pumpAndSettle();
 
-      // Subject appears in both the app bar and the email header section.
-      expect(find.text('Project update'), findsAtLeastNWidgets(1));
+      // Subject appears only in the email header section, not in the app bar.
+      expect(find.text('Project update'), findsOneWidget);
       expect(find.text('See attached slides.'), findsOneWidget);
     });
 
@@ -266,7 +266,7 @@ void main() {
       expect(find.textContaining('carol@example.com'), findsAtLeastNWidgets(1));
     });
 
-    testWidgets('Mark as spam is in popup menu, not a standalone button', (
+    testWidgets('Mark as spam is a standalone button, not in popup menu', (
       tester,
     ) async {
       await tester.pumpWidget(
@@ -279,19 +279,19 @@ void main() {
       );
       await tester.pumpAndSettle();
 
-      // No standalone icon button for mark as spam.
+      // Standalone icon button for mark as spam is in the app bar.
       expect(
         find.byWidgetPredicate(
           (w) => w is Tooltip && w.message == 'Mark as spam',
         ),
-        findsNothing,
+        findsOneWidget,
       );
 
-      // It appears in the popup menu.
+      // It does NOT appear in the popup menu.
       await tester.tap(find.byType(PopupMenuButton<String>));
       await tester.pumpAndSettle();
 
-      expect(find.text('Mark as spam'), findsOneWidget);
+      expect(find.text('Mark as spam'), findsNothing);
     });
 
     testWidgets('Mark as spam shows dialog when no junk folder', (
@@ -309,11 +309,11 @@ void main() {
       );
       await tester.pumpAndSettle();
 
-      // Open the popup menu first, then tap Mark as spam.
-      await tester.tap(find.byType(PopupMenuButton<String>));
-      await tester.pumpAndSettle();
-
-      await tester.tap(find.text('Mark as spam'));
+      await tester.tap(
+        find.byWidgetPredicate(
+          (w) => w is Tooltip && w.message == 'Mark as spam',
+        ),
+      );
       await tester.pumpAndSettle();
 
       expect(find.text('No spam folder found'), findsOneWidget);
@@ -582,6 +582,54 @@ void main() {
 
       expect(find.textContaining('Structure not available'), findsOneWidget);
     });
+
+    testWidgets(
+      'Load remote images snack bar auto-dismisses after 3 seconds',
+      (tester) async {
+        const body = EmailBody(
+          emailId: 'acc-1:42',
+          htmlBody: '<p>Hello <img src="https://example.com/x.png"/></p>',
+          attachments: [],
+        );
+        await tester.pumpWidget(
+          buildApp(
+            initialLocation:
+                '/accounts/acc-1/mailboxes/INBOX/emails/acc-1%3A42',
+            overrides: _overrides(body: body),
+          ),
+        );
+        await tester.pumpAndSettle();
+
+        // The "Load remote images" button is visible because the sender is
+        // not yet trusted.
+        expect(find.text('Load remote images'), findsOneWidget);
+
+        await tester.tap(find.text('Load remote images'));
+        // Settle the snack bar enter animation and the setState rebuild
+        // that swaps in the image-loading WebView.
+        await tester.pump();
+        await tester.pump(const Duration(milliseconds: 500));
+
+        // Snack bar must be visible.
+        expect(
+          find.text('Images will be loaded automatically for this sender.'),
+          findsOneWidget,
+        );
+
+        // After 3 seconds (the snack bar's duration) plus the reverse
+        // animation, the snack bar must be gone.
+        // Regression test for #484: SnackBar with an action defaults to
+        // persist=true, which disables auto-dismiss — explicit persist:false
+        // restores duration-based dismissal.
+        await tester.pump(const Duration(seconds: 4));
+        await tester.pumpAndSettle();
+
+        expect(
+          find.text('Images will be loaded automatically for this sender.'),
+          findsNothing,
+        );
+      },
+    );
   });
 }
 

test/widget/email_list_screen_test.dart

@@ -446,10 +446,10 @@ void main() {
         await tester.pumpAndSettle();
 
         expect(find.byType(EmailDetailScreen), findsOneWidget);
-        // The detail AppBar title shows the first email's subject.
+        // The detail body header shows the first email's subject.
         expect(
           find.descendant(
-            of: find.byType(AppBar),
+            of: find.byType(EmailDetailScreen),
             matching: find.text('Alpha Match'),
           ),
           findsOneWidget,
@@ -798,6 +798,67 @@ void main() {
       },
     );
 
+    testWidgets(
+      'pressing Enter after search settles does not reorder results',
+      (tester) async {
+        // Reproduces: user types a query → onChanged fires → results settle.
+        // Then user presses Enter → onSubmitted fires a second search → the
+        // second IMAP response may return results in a different order, so the
+        // tile the user is about to tap is no longer the email they expect.
+        final email1 = testEmail(id: 'acc-1:1', subject: 'Alpha Foo');
+        final email2 = testEmail(id: 'acc-1:2', subject: 'Beta Foo');
+        var callCount = 0;
+        await tester.pumpWidget(
+          buildApp(
+            initialLocation: '/accounts/acc-1/mailboxes/INBOX/emails',
+            overrides: [
+              accountRepositoryProvider.overrideWithValue(
+                FakeAccountRepository([kTestAccount]),
+              ),
+              mailboxRepositoryProvider.overrideWithValue(
+                FakeMailboxRepository(),
+              ),
+              emailRepositoryProvider.overrideWithValue(
+                FakeEmailRepository(
+                  onSearch: (_) async {
+                    callCount++;
+                    // First call: [Alpha, Beta]. Second call: reversed.
+                    return callCount == 1 ? [email1, email2] : [email2, email1];
+                  },
+                  emailBody: const EmailBody(emailId: '', attachments: []),
+                ),
+              ),
+            ],
+          ),
+        );
+        await tester.pumpAndSettle();
+
+        // Typing triggers onChanged → first search → results settle.
+        await tester.enterText(find.byType(TextField), 'foo');
+        await tester.pumpAndSettle();
+
+        expect(find.text('Alpha Foo'), findsOneWidget);
+        expect(find.text('Beta Foo'), findsOneWidget);
+        // Alpha must appear above Beta (it is first in the list).
+        expect(
+          tester.getTopLeft(find.text('Alpha Foo')).dy,
+          lessThan(tester.getTopLeft(find.text('Beta Foo')).dy),
+        );
+
+        // Pressing Enter triggers onSubmitted — must NOT re-run the search.
+        await tester.testTextInput.receiveAction(TextInputAction.search);
+        await tester.pumpAndSettle();
+
+        // Order must be unchanged: pressing Enter must not reorder results.
+        expect(find.text('Alpha Foo'), findsOneWidget);
+        expect(find.text('Beta Foo'), findsOneWidget);
+        expect(
+          tester.getTopLeft(find.text('Alpha Foo')).dy,
+          lessThan(tester.getTopLeft(find.text('Beta Foo')).dy),
+        );
+      },
+    );
+
     testWidgets('shows preview snippet when email has preview', (tester) async {
       final email = Email(
         id: 'acc-1:99',

test/widget/helpers.dart

@@ -10,6 +10,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:flutter_riverpod/misc.dart' show Override;
 import 'package:go_router/go_router.dart';
 
+import 'package:sharedinbox/core/filter/filter_expression.dart';
 import 'package:sharedinbox/core/models/account.dart';
 import 'package:sharedinbox/core/models/discovery_result.dart';
 import 'package:sharedinbox/core/models/draft.dart';
@@ -43,6 +44,7 @@ import 'package:sharedinbox/ui/screens/email_list_screen.dart';
 import 'package:sharedinbox/ui/screens/mailbox_list_screen.dart';
 import 'package:sharedinbox/ui/screens/search_screen.dart';
 import 'package:sharedinbox/ui/screens/thread_detail_screen.dart';
+import 'package:sharedinbox/ui/screens/trusted_image_senders_screen.dart';
 import 'package:sharedinbox/ui/screens/user_preferences_screen.dart';
 
 // ---------------------------------------------------------------------------
@@ -365,6 +367,13 @@ class FakeEmailRepository implements EmailRepository {
   ) async =>
       _searchResults;
 
+  @override
+  Future<List<Email>> searchEmailsStructured(
+    String? accountId,
+    FilterGroup filter,
+  ) async =>
+      [];
+
   @override
   Future<List<Email>> getEmailsByAddress(
     String? accountId,
@@ -476,6 +485,12 @@ Widget buildApp({
             path: 'preferences',
             builder: (ctx, state) => const UserPreferencesScreen(),
           ),
+          GoRoute(
+            path: 'trusted-senders',
+            builder: (ctx, state) => TrustedImageSendersScreen(
+              highlightedSender: state.extra as String?,
+            ),
+          ),
           GoRoute(
             path: ':accountId/edit',
             builder: (ctx, state) => EditAccountScreen(
@@ -688,6 +703,9 @@ class FakeUserPreferencesRepository implements UserPreferencesRepository {
   AfterMailViewAction afterMailViewAction;
   final List<String> _trustedImageSenders;
 
+  List<String> get trustedImageSendersForTest =>
+      List.unmodifiable(_trustedImageSenders);
+
   @override
   Stream<UserPreferences> observePreferences() => Stream.value(
         UserPreferences(

test/widget/thread_detail_screen_test.dart

@@ -249,5 +249,59 @@ void main() {
 
       expect(find.text('Body content here'), findsOneWidget);
     });
+
+    testWidgets(
+      'Load remote images snack bar auto-dismisses after 3 seconds',
+      (tester) async {
+        final email = _threadEmail();
+        await tester.pumpWidget(
+          buildApp(
+            initialLocation: '/accounts/acc-1/mailboxes/INBOX/threads/thread-1',
+            overrides: [
+              accountRepositoryProvider.overrideWithValue(
+                FakeAccountRepository([kTestAccount]),
+              ),
+              mailboxRepositoryProvider.overrideWithValue(
+                FakeMailboxRepository(),
+              ),
+              emailRepositoryProvider.overrideWithValue(
+                FakeEmailRepository(
+                  emails: [email],
+                  emailBody: const EmailBody(
+                    emailId: 'acc-1:10',
+                    htmlBody:
+                        '<p>Hi <img src="https://example.com/x.png"/></p>',
+                    attachments: [],
+                  ),
+                ),
+              ),
+            ],
+          ),
+        );
+        await tester.pumpAndSettle();
+
+        expect(find.text('Load remote images'), findsOneWidget);
+
+        await tester.tap(find.text('Load remote images'));
+        await tester.pump();
+        await tester.pump(const Duration(milliseconds: 500));
+
+        expect(
+          find.text('Images will be loaded automatically for this sender.'),
+          findsOneWidget,
+        );
+
+        // Regression test for #484: SnackBar with an action defaults to
+        // persist=true, which disables auto-dismiss — explicit persist:false
+        // restores duration-based dismissal.
+        await tester.pump(const Duration(seconds: 4));
+        await tester.pumpAndSettle();
+
+        expect(
+          find.text('Images will be loaded automatically for this sender.'),
+          findsNothing,
+        );
+      },
+    );
   });
 }

test/widget/trusted_image_senders_screen_test.dart

@@ -0,0 +1,163 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'helpers.dart';
+
+void main() {
+  group('TrustedImageSendersScreen', () {
+    testWidgets('shows empty state with glob hint when no senders', (
+      tester,
+    ) async {
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/trusted-senders',
+          overrides: baseOverrides(),
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      expect(find.textContaining('*@example.com'), findsOneWidget);
+      expect(find.byIcon(Icons.add), findsOneWidget);
+    });
+
+    testWidgets('lists existing senders', (tester) async {
+      final repo = FakeUserPreferencesRepository(
+        trustedImageSenders: ['alice@example.com', '*@work.com'],
+      );
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/trusted-senders',
+          overrides: baseOverrides(),
+          userPreferences: repo,
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      expect(find.text('alice@example.com'), findsOneWidget);
+      expect(find.text('*@work.com'), findsOneWidget);
+    });
+
+    testWidgets('add dialog shows glob hint text', (tester) async {
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/trusted-senders',
+          overrides: baseOverrides(),
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.byIcon(Icons.add));
+      await tester.pumpAndSettle();
+
+      expect(find.text('Add allowed address'), findsOneWidget);
+      expect(find.textContaining('*@example.com'), findsWidgets);
+      expect(find.textContaining('* matches any characters'), findsOneWidget);
+    });
+
+    testWidgets('Add button is disabled when input is empty', (tester) async {
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/trusted-senders',
+          overrides: baseOverrides(),
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.byIcon(Icons.add));
+      await tester.pumpAndSettle();
+
+      final addButton = find.widgetWithText(TextButton, 'Add');
+      final button = tester.widget<TextButton>(addButton);
+      expect(button.onPressed, isNull);
+    });
+
+    testWidgets('typing in dialog enables Add button and adds sender', (
+      tester,
+    ) async {
+      final repo = FakeUserPreferencesRepository();
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/trusted-senders',
+          overrides: baseOverrides(),
+          userPreferences: repo,
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.byIcon(Icons.add));
+      await tester.pumpAndSettle();
+
+      await tester.enterText(find.byType(TextField), '*@example.com');
+      await tester.pumpAndSettle();
+
+      final addButton = find.widgetWithText(TextButton, 'Add');
+      final button = tester.widget<TextButton>(addButton);
+      expect(button.onPressed, isNotNull);
+
+      await tester.tap(addButton);
+      await tester.pumpAndSettle();
+
+      expect(repo.trustedImageSendersForTest, contains('*@example.com'));
+    });
+
+    testWidgets('cancel closes dialog without adding', (tester) async {
+      final repo = FakeUserPreferencesRepository();
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/trusted-senders',
+          overrides: baseOverrides(),
+          userPreferences: repo,
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.byIcon(Icons.add));
+      await tester.pumpAndSettle();
+
+      await tester.enterText(find.byType(TextField), 'someone@test.com');
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.widgetWithText(TextButton, 'Cancel'));
+      await tester.pumpAndSettle();
+
+      expect(find.byType(AlertDialog), findsNothing);
+      expect(repo.trustedImageSendersForTest, isEmpty);
+    });
+
+    testWidgets('delete button removes a sender', (tester) async {
+      final repo = FakeUserPreferencesRepository(
+        trustedImageSenders: ['alice@example.com'],
+      );
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/trusted-senders',
+          overrides: baseOverrides(),
+          userPreferences: repo,
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.byIcon(Icons.delete_outline));
+      await tester.pumpAndSettle();
+
+      expect(repo.trustedImageSendersForTest, isEmpty);
+    });
+
+    testWidgets('lists existing glob patterns', (tester) async {
+      final repo = FakeUserPreferencesRepository(
+        trustedImageSenders: ['*@example.com', 'alice@other.com'],
+      );
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/trusted-senders',
+          overrides: baseOverrides(),
+          userPreferences: repo,
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      expect(find.text('*@example.com'), findsOneWidget);
+      expect(find.text('alice@other.com'), findsOneWidget);
+    });
+  });
+}

test/widget/undo_log_detail_screen_test.dart

@@ -0,0 +1,176 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:go_router/go_router.dart';
+
+import 'package:sharedinbox/core/models/email.dart';
+import 'package:sharedinbox/core/models/undo_action.dart';
+import 'package:sharedinbox/di.dart';
+import 'package:sharedinbox/ui/screens/undo_log_detail_screen.dart';
+
+import 'helpers.dart';
+
+// FakeEmailRepository subclass that returns a pre-configured email from
+// findEmailByMessageId, so the tap handler in UndoLogDetailScreen can be
+// exercised without a real database.
+class _LookupEmailRepository extends FakeEmailRepository {
+  _LookupEmailRepository(this._lookup);
+
+  final Email? _lookup;
+
+  @override
+  Future<Email?> findEmailByMessageId(
+    String accountId,
+    String messageId,
+  ) async =>
+      _lookup;
+}
+
+UndoAction _action({
+  required List<Email> originalEmails,
+  String accountId = 'acc-1',
+}) =>
+    UndoAction(
+      id: 'undo-1',
+      accountId: accountId,
+      type: UndoType.move,
+      emailIds: originalEmails.map((e) => e.id).toList(),
+      sourceMailboxPath: 'INBOX',
+      destinationMailboxPath: 'Archive',
+      originalEmails: originalEmails,
+      timestamp: DateTime(2024, 6),
+    );
+
+Email _emailWith({
+  String id = 'acc-1:42',
+  String mailboxPath = 'INBOX',
+  String? messageId = '<msg-1@example.com>',
+}) =>
+    Email(
+      id: id,
+      accountId: 'acc-1',
+      mailboxPath: mailboxPath,
+      uid: 42,
+      subject: 'Hello world',
+      receivedAt: DateTime(2024, 6),
+      sentAt: DateTime(2024, 6),
+      from: const [EmailAddress(name: 'Bob', email: 'bob@example.com')],
+      to: const [EmailAddress(email: 'alice@example.com')],
+      cc: const [],
+      isSeen: false,
+      isFlagged: false,
+      hasAttachment: false,
+      messageId: messageId,
+    );
+
+// Builds a minimal app whose initial location is the undo log detail screen
+// for [action]. A placeholder email-detail route records its visit so the
+// test can assert which path the tap navigated to.
+Widget _buildApp({
+  required UndoAction action,
+  required FakeEmailRepository emailRepo,
+  ValueNotifier<String?>? lastEmailRoute,
+}) {
+  final router = GoRouter(
+    initialLocation: '/undo-detail',
+    routes: [
+      GoRoute(
+        path: '/undo-detail',
+        builder: (ctx, state) => UndoLogDetailScreen(action: action),
+      ),
+      GoRoute(
+        path: '/accounts/:accountId/mailboxes/:mailboxPath/emails/:emailId',
+        builder: (ctx, state) {
+          lastEmailRoute?.value = state.uri.toString();
+          return const Scaffold(body: Text('email-detail-route'));
+        },
+      ),
+    ],
+  );
+
+  return ProviderScope(
+    overrides: [
+      emailRepositoryProvider.overrideWithValue(emailRepo),
+    ],
+    child: MaterialApp.router(routerConfig: router),
+  );
+}
+
+void main() {
+  group('UndoLogDetailScreen email row tap', () {
+    testWidgets('navigates to the current location returned by lookup', (
+      tester,
+    ) async {
+      // Original row recorded INBOX/42; after the move it now lives in
+      // Archive with a fresh UID — the lookup is what bridges that gap.
+      final original = _emailWith();
+      final current = _emailWith(id: 'acc-1:77', mailboxPath: 'Archive');
+      final lastRoute = ValueNotifier<String?>(null);
+
+      await tester.pumpWidget(
+        _buildApp(
+          action: _action(originalEmails: [original]),
+          emailRepo: _LookupEmailRepository(current),
+          lastEmailRoute: lastRoute,
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.text('Hello world'));
+      await tester.pumpAndSettle();
+
+      expect(find.text('email-detail-route'), findsOneWidget);
+      expect(
+        lastRoute.value,
+        '/accounts/acc-1/mailboxes/Archive/emails/acc-1%3A77',
+      );
+    });
+
+    testWidgets('shows snackbar when lookup returns null', (tester) async {
+      final original = _emailWith();
+      final lastRoute = ValueNotifier<String?>(null);
+
+      await tester.pumpWidget(
+        _buildApp(
+          action: _action(originalEmails: [original]),
+          emailRepo: _LookupEmailRepository(null),
+          lastEmailRoute: lastRoute,
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.text('Hello world'));
+      await tester.pump();
+
+      expect(
+        find.textContaining('Email no longer exists'),
+        findsOneWidget,
+      );
+      expect(lastRoute.value, isNull);
+      expect(find.text('email-detail-route'), findsNothing);
+    });
+
+    testWidgets('shows snackbar when email has no Message-ID', (tester) async {
+      final original = _emailWith(messageId: null);
+      final lastRoute = ValueNotifier<String?>(null);
+
+      await tester.pumpWidget(
+        _buildApp(
+          action: _action(originalEmails: [original]),
+          // Lookup would succeed if called, but with no Message-ID the
+          // tap handler must short-circuit before reaching it.
+          emailRepo: _LookupEmailRepository(_emailWith()),
+          lastEmailRoute: lastRoute,
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      await tester.tap(find.text('Hello world'));
+      await tester.pump();
+
+      expect(find.textContaining('no Message-ID'), findsOneWidget);
+      expect(lastRoute.value, isNull);
+      expect(find.text('email-detail-route'), findsNothing);
+    });
+  });
+}