feat: add build mode, Dart version, timestamp to crash report (#205)

Show app version, build mode, and platform OS in the crash screen UI
so users can report bugs without needing to copy first.  The clipboard
report now also includes Build Mode (debug/release/profile), Dart
runtime version, and a UTC timestamp to aid post-crash diagnosis.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.forgejo/workflows/ci.yml

@@ -3,7 +3,41 @@ name: CI
 on:
   push:
     branches: [main]
+    paths:
+      - 'lib/**'
+      - 'test/**'
+      - 'integration_test/**'
+      - 'android/**'
+      - 'linux/**'
+      - 'assets/**'
+      - '!assets/changelog.txt'
+      - 'pubspec.yaml'
+      - 'pubspec.lock'
+      - 'analysis_options.yaml'
+      - 'scripts/**'
+      - 'stalwart-dev/**'
+      - 'ci/**'
+      - 'Taskfile.yml'
+      - 'drift_schemas/**'
+      - '.forgejo/workflows/ci.yml'
   pull_request:
+    paths:
+      - 'lib/**'
+      - 'test/**'
+      - 'integration_test/**'
+      - 'android/**'
+      - 'linux/**'
+      - 'assets/**'
+      - '!assets/changelog.txt'
+      - 'pubspec.yaml'
+      - 'pubspec.lock'
+      - 'analysis_options.yaml'
+      - 'scripts/**'
+      - 'stalwart-dev/**'
+      - 'ci/**'
+      - 'Taskfile.yml'
+      - 'drift_schemas/**'
+      - '.forgejo/workflows/ci.yml'
 
 jobs:
   check:

.forgejo/workflows/deploy.yml

@@ -6,10 +6,55 @@ on:
   workflow_dispatch:
 
 jobs:
+  check-changes:
+    name: Detect Changed Files
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    outputs:
+      android: ${{ steps.diff.outputs.android }}
+      linux: ${{ steps.diff.outputs.linux }}
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Detect Android and Linux changes
+        id: diff
+        shell: bash
+        run: |
+          # On workflow_dispatch always build everything
+          if [ "$GITHUB_EVENT_NAME" = "workflow_dispatch" ]; then
+            echo "android=true" >> "$GITHUB_OUTPUT"
+            echo "linux=true"   >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          # Diff the HEAD commit against its parent; fall back to listing HEAD's files
+          # when the parent is unavailable (initial commit, shallow clone).
+          CHANGED=$(git diff --name-only HEAD~1 HEAD 2>/dev/null \
+            || git show --name-only --format= HEAD)
+
+          echo "Changed files:"
+          echo "$CHANGED"
+
+          android_re='^(android/|integration_test/|lib/|pubspec\.yaml|pubspec\.lock|drift_schemas/)'
+          linux_re='^(linux/|lib/|pubspec\.yaml|pubspec\.lock)'
+
+          echo "$CHANGED" | grep -qE "$android_re" \
+            && echo "android=true" >> "$GITHUB_OUTPUT" \
+            || echo "android=false" >> "$GITHUB_OUTPUT"
+
+          echo "$CHANGED" | grep -qE "$linux_re" \
+            && echo "linux=true"   >> "$GITHUB_OUTPUT" \
+            || echo "linux=false"  >> "$GITHUB_OUTPUT"
+
   test-android-firebase:
     name: Android Instrumented Tests (Firebase Test Lab)
     runs-on: ubuntu-latest
     timeout-minutes: 60
+    needs: [check-changes]
+    if: needs.check-changes.outputs.android == 'true'
 
     steps:
       - uses: actions/checkout@v4
@@ -46,6 +91,8 @@ jobs:
     name: Build & Deploy to Play Store
     runs-on: ubuntu-latest
     timeout-minutes: 60
+    needs: [check-changes]
+    if: needs.check-changes.outputs.android == 'true'
 
     steps:
       - uses: actions/checkout@v4
@@ -83,6 +130,8 @@ jobs:
     name: Build & Deploy APK to Server
     runs-on: ubuntu-latest
     timeout-minutes: 60
+    needs: [check-changes]
+    if: needs.check-changes.outputs.android == 'true'
 
     steps:
       - uses: actions/checkout@v4
@@ -107,6 +156,7 @@ jobs:
         if: ${{ secrets.SSH_PRIVATE_KEY != '' }}
         env:
           SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
+          SSH_KNOWN_HOSTS: ${{ secrets.SSH_KNOWN_HOSTS }}
           SSH_USER: ${{ secrets.SSH_USER }}
           SSH_HOST: ${{ secrets.SSH_HOST }}
           ANDROID_KEYSTORE_BASE64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
@@ -122,6 +172,8 @@ jobs:
     name: Build Linux Release
     runs-on: ubuntu-latest
     timeout-minutes: 60
+    needs: [check-changes]
+    if: needs.check-changes.outputs.linux == 'true'
 
     steps:
       - uses: actions/checkout@v4
@@ -146,6 +198,7 @@ jobs:
         if: ${{ secrets.SSH_PRIVATE_KEY != '' }}
         env:
           SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
+          SSH_KNOWN_HOSTS: ${{ secrets.SSH_KNOWN_HOSTS }}
           SSH_USER: ${{ secrets.SSH_USER }}
           SSH_HOST: ${{ secrets.SSH_HOST }}
           DAGGER_NO_NAG: "1"
@@ -187,6 +240,7 @@ jobs:
         if: ${{ secrets.SSH_PRIVATE_KEY != '' }}
         env:
           SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
+          SSH_KNOWN_HOSTS: ${{ secrets.SSH_KNOWN_HOSTS }}
           SSH_USER: ${{ secrets.SSH_USER }}
           SSH_HOST: ${{ secrets.SSH_HOST }}
           DAGGER_NO_NAG: "1"
@@ -200,7 +254,13 @@ jobs:
     name: Update Deploy Health Label
     runs-on: ubuntu-latest
     needs: [test-android-firebase, deploy-playstore, deploy-apk, build-linux]
-    if: always() && vars.DEPLOY_HEALTH_ISSUE != ''
+    if: |
+      always() && vars.DEPLOY_HEALTH_ISSUE != '' && (
+        needs.test-android-firebase.result == 'success' || needs.test-android-firebase.result == 'failure' ||
+        needs.deploy-playstore.result == 'success' || needs.deploy-playstore.result == 'failure' ||
+        needs.deploy-apk.result == 'success' || needs.deploy-apk.result == 'failure' ||
+        needs.build-linux.result == 'success' || needs.build-linux.result == 'failure'
+      )
     timeout-minutes: 5
 
     steps:
@@ -209,7 +269,7 @@ jobs:
           FORGEJO_TOKEN: ${{ github.token }}
           FORGEJO_URL: ${{ github.server_url }}
           DEPLOY_HEALTH_ISSUE: ${{ vars.DEPLOY_HEALTH_ISSUE }}
-          ALL_SUCCEEDED: ${{ needs.test-android-firebase.result == 'success' && needs.deploy-playstore.result == 'success' && needs.deploy-apk.result == 'success' && needs.build-linux.result == 'success' }}
+          ALL_SUCCEEDED: ${{ (needs.test-android-firebase.result == 'success' || needs.test-android-firebase.result == 'skipped') && (needs.deploy-playstore.result == 'success' || needs.deploy-playstore.result == 'skipped') && (needs.deploy-apk.result == 'success' || needs.deploy-apk.result == 'skipped') && (needs.build-linux.result == 'success' || needs.build-linux.result == 'skipped') }}
         run: |
           python3 - << 'PYEOF'
           import os, json, urllib.request, urllib.error

.github/workflows/ci.yml

@@ -202,6 +202,8 @@ jobs:
           mkdir -p ~/.ssh
           printf '%s\n' "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
           chmod 600 ~/.ssh/id_ed25519
+          printf '%s\n' "${{ secrets.SSH_KNOWN_HOSTS }}" >> ~/.ssh/known_hosts
+          chmod 644 ~/.ssh/known_hosts
 
       - name: Build Linux release
         run: |
@@ -215,20 +217,20 @@ jobs:
           REMOTE_DIR="public_html/builds/$DATE_PATH"
           TARBALL="sharedinbox-linux-amd64-$HASH.tar.gz"
           tar -czf /tmp/$TARBALL -C build/linux/x64/release bundle
-          ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "mkdir -p $REMOTE_DIR"
-          scp -o StrictHostKeyChecking=no /tmp/$TARBALL "$SSH_USER@$SSH_HOST:$REMOTE_DIR/$TARBALL"
+          ssh "$SSH_USER@$SSH_HOST" "mkdir -p $REMOTE_DIR"
+          scp /tmp/$TARBALL "$SSH_USER@$SSH_HOST:$REMOTE_DIR/$TARBALL"
           DOWNLOAD_URL="https://sharedinbox.de/builds/$DATE_PATH/$TARBALL"
-          EXISTING=$(ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" \
+          EXISTING=$(ssh "$SSH_USER@$SSH_HOST" \
             "cat public_html/latest.json 2>/dev/null || echo '{}'")
           WINDOWS_URL=$(echo "$EXISTING" | \
             python3 -c "import json,sys; d=json.load(sys.stdin); print(d.get('windows',''))" \
             2>/dev/null || true)
           if [ -n "$WINDOWS_URL" ]; then
             echo "{\"version\":\"$HASH\",\"linux\":\"$DOWNLOAD_URL\",\"windows\":\"$WINDOWS_URL\"}" | \
-              ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
+              ssh "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
           else
             echo "{\"version\":\"$HASH\",\"linux\":\"$DOWNLOAD_URL\"}" | \
-              ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
+              ssh "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
           fi
 
       - name: Generate build history pages
@@ -244,6 +246,5 @@ jobs:
           rsync -avz --delete \
             --exclude='*.apk' \
             --exclude='*.tar.gz' \
-            -e "ssh -o StrictHostKeyChecking=no" \
             website/public/ \
             "$SSH_USER@$SSH_HOST:public_html/"

Taskfile.yml

@@ -215,8 +215,10 @@ tasks:
     preconditions:
       - sh: test -n "$SSH_PRIVATE_KEY"
         msg: "SSH_PRIVATE_KEY is not set"
+      - sh: test -n "$SSH_KNOWN_HOSTS"
+        msg: "SSH_KNOWN_HOSTS is not set"
     cmds:
-      - HASH=$(git rev-parse --short HEAD) && dagger call --progress=plain -q -m ci --source=. deploy-linux --ssh-key env:SSH_PRIVATE_KEY --ssh-user "$SSH_USER" --ssh-host "$SSH_HOST" --commit-hash "$HASH"
+      - HASH=$(git rev-parse --short HEAD) && dagger call --progress=plain -q -m ci --source=. deploy-linux --ssh-key env:SSH_PRIVATE_KEY --known-hosts env:SSH_KNOWN_HOSTS --ssh-user "$SSH_USER" --ssh-host "$SSH_HOST" --commit-hash "$HASH"
 
   build-android-bundle:
     desc: Build AAB via Dagger (cached, versionCode=1 placeholder) and export locally
@@ -251,17 +253,24 @@ tasks:
     preconditions:
       - sh: test -n "$SSH_PRIVATE_KEY"
         msg: "SSH_PRIVATE_KEY is not set"
+      - sh: test -n "$SSH_KNOWN_HOSTS"
+        msg: "SSH_KNOWN_HOSTS is not set"
       - sh: test -n "$ANDROID_KEYSTORE_BASE64"
         msg: "ANDROID_KEYSTORE_BASE64 is not set"
       - sh: test -n "$ANDROID_KEYSTORE_PASSWORD"
         msg: "ANDROID_KEYSTORE_PASSWORD is not set"
     cmds:
-      - HASH=$(git rev-parse --short HEAD) && dagger call --progress=plain -q -m ci --source=. deploy-apk --ssh-key env:SSH_PRIVATE_KEY --ssh-user "$SSH_USER" --ssh-host "$SSH_HOST" --commit-hash "$HASH" --keystore-base64 env:ANDROID_KEYSTORE_BASE64 --keystore-password env:ANDROID_KEYSTORE_PASSWORD --build-number "$(git log -1 --format=%ct HEAD)"
+      - HASH=$(git rev-parse --short HEAD) && dagger call --progress=plain -q -m ci --source=. deploy-apk --ssh-key env:SSH_PRIVATE_KEY --known-hosts env:SSH_KNOWN_HOSTS --ssh-user "$SSH_USER" --ssh-host "$SSH_HOST" --commit-hash "$HASH" --keystore-base64 env:ANDROID_KEYSTORE_BASE64 --keystore-password env:ANDROID_KEYSTORE_PASSWORD --build-number "$(git log -1 --format=%ct HEAD)"
 
   publish-website:
     desc: Build and publish website via Dagger
+    preconditions:
+      - sh: test -n "$SSH_PRIVATE_KEY"
+        msg: "SSH_PRIVATE_KEY is not set"
+      - sh: test -n "$SSH_KNOWN_HOSTS"
+        msg: "SSH_KNOWN_HOSTS is not set"
     cmds:
-      - dagger call --progress=plain -q -m ci --source=. publish-website --ssh-key file:$HOME/.ssh/id_ed25519 --ssh-user "$SSH_USER" --ssh-host "$SSH_HOST"
+      - dagger call --progress=plain -q -m ci --source=. publish-website --ssh-key env:SSH_PRIVATE_KEY --known-hosts env:SSH_KNOWN_HOSTS --ssh-user "$SSH_USER" --ssh-host "$SSH_HOST"
 
   check-dagger:
     desc: Run full check suite via Dagger (with OTEL timing report if python3 is available)
@@ -373,25 +382,29 @@ tasks:
         msg: "SSH_USER is not set"
       - sh: test -n "$SSH_HOST"
         msg: "SSH_HOST is not set"
+      - sh: test -n "$SSH_KNOWN_HOSTS"
+        msg: "SSH_KNOWN_HOSTS is not set"
     cmds:
       - |
+        mkdir -p ~/.ssh
+        printf '%s\n' "$SSH_KNOWN_HOSTS" >> ~/.ssh/known_hosts
         HASH=$(git rev-parse --short HEAD)
         DATE_PATH=$(date -u +%Y/%m/%d)
         REMOTE_DIR="public_html/builds/$DATE_PATH"
         TARBALL="sharedinbox-linux-amd64-$HASH.tar.gz"
         tar -czf /tmp/$TARBALL -C build/linux/x64/release bundle
-        ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "mkdir -p $REMOTE_DIR"
-        scp -o StrictHostKeyChecking=no /tmp/$TARBALL "$SSH_USER@$SSH_HOST:$REMOTE_DIR/$TARBALL"
+        ssh "$SSH_USER@$SSH_HOST" "mkdir -p $REMOTE_DIR"
+        scp /tmp/$TARBALL "$SSH_USER@$SSH_HOST:$REMOTE_DIR/$TARBALL"
         DOWNLOAD_URL="https://sharedinbox.de/builds/$DATE_PATH/$TARBALL"
         # Merge with any existing latest.json so we don't overwrite the windows key
-        EXISTING=$(ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "cat public_html/latest.json 2>/dev/null || echo '{}'")
+        EXISTING=$(ssh "$SSH_USER@$SSH_HOST" "cat public_html/latest.json 2>/dev/null || echo '{}'")
         WINDOWS_URL=$(echo "$EXISTING" | python3 -c "import json,sys; d=json.load(sys.stdin); print(d.get('windows',''))" 2>/dev/null || true)
         if [ -n "$WINDOWS_URL" ]; then
           echo "{\"version\":\"$HASH\",\"linux\":\"$DOWNLOAD_URL\",\"windows\":\"$WINDOWS_URL\"}" | \
-            ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
+            ssh "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
         else
           echo "{\"version\":\"$HASH\",\"linux\":\"$DOWNLOAD_URL\"}" | \
-            ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
+            ssh "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
         fi
         echo "Uploaded $TARBALL and updated latest.json"
 
@@ -416,24 +429,28 @@ tasks:
         msg: "SSH_USER is not set"
       - sh: test -n "$SSH_HOST"
         msg: "SSH_HOST is not set"
+      - sh: test -n "$SSH_KNOWN_HOSTS"
+        msg: "SSH_KNOWN_HOSTS is not set"
     cmds:
       - |
+        mkdir -p ~/.ssh
+        printf '%s\n' "$SSH_KNOWN_HOSTS" >> ~/.ssh/known_hosts
         HASH=$(git rev-parse --short HEAD)
         DATE_PATH=$(date -u +%Y/%m/%d)
         REMOTE_DIR="public_html/builds/$DATE_PATH"
         ZIPFILE="sharedinbox-windows-x64-$HASH.zip"
         cd build/windows/x64/runner && zip -r /tmp/$ZIPFILE Release/ && cd -
-        ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "mkdir -p $REMOTE_DIR"
-        scp -o StrictHostKeyChecking=no /tmp/$ZIPFILE "$SSH_USER@$SSH_HOST:$REMOTE_DIR/$ZIPFILE"
+        ssh "$SSH_USER@$SSH_HOST" "mkdir -p $REMOTE_DIR"
+        scp /tmp/$ZIPFILE "$SSH_USER@$SSH_HOST:$REMOTE_DIR/$ZIPFILE"
         DOWNLOAD_URL="https://sharedinbox.de/builds/$DATE_PATH/$ZIPFILE"
-        EXISTING=$(ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "cat public_html/latest.json 2>/dev/null || echo '{}'")
+        EXISTING=$(ssh "$SSH_USER@$SSH_HOST" "cat public_html/latest.json 2>/dev/null || echo '{}'")
         LINUX_URL=$(echo "$EXISTING" | python3 -c "import json,sys; d=json.load(sys.stdin); print(d.get('linux',''))" 2>/dev/null || true)
         if [ -n "$LINUX_URL" ]; then
           echo "{\"version\":\"$HASH\",\"linux\":\"$LINUX_URL\",\"windows\":\"$DOWNLOAD_URL\"}" | \
-            ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
+            ssh "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
         else
           echo "{\"version\":\"$HASH\",\"windows\":\"$DOWNLOAD_URL\"}" | \
-            ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
+            ssh "$SSH_USER@$SSH_HOST" "cat > public_html/latest.json"
         fi
         echo "Uploaded $ZIPFILE and updated latest.json"
 
@@ -583,14 +600,18 @@ tasks:
         msg: "SSH_USER is not set"
       - sh: test -n "$SSH_HOST"
         msg: "SSH_HOST is not set"
+      - sh: test -n "$SSH_KNOWN_HOSTS"
+        msg: "SSH_KNOWN_HOSTS is not set"
     cmds:
       - |
+        mkdir -p ~/.ssh
+        printf '%s\n' "$SSH_KNOWN_HOSTS" >> ~/.ssh/known_hosts
         HASH=$(git rev-parse --short HEAD)
         DATE_PATH=$(date -u +%Y/%m/%d)
         REMOTE_DIR="public_html/builds/$DATE_PATH"
         APK_NAME="sharedinbox-mua-$HASH.apk"
-        ssh -o StrictHostKeyChecking=no "$SSH_USER@$SSH_HOST" "mkdir -p $REMOTE_DIR"
-        scp -o StrictHostKeyChecking=no \
+        ssh "$SSH_USER@$SSH_HOST" "mkdir -p $REMOTE_DIR"
+        scp \
           build/app/outputs/flutter-apk/app-release.apk \
           "$SSH_USER@$SSH_HOST:$REMOTE_DIR/$APK_NAME"
         echo "Uploaded $APK_NAME to $REMOTE_DIR"
@@ -619,12 +640,16 @@ tasks:
   website-deploy:
     desc: Deploy the website via rsync to public_html
     deps: [website-build]
+    preconditions:
+      - sh: test -n "$SSH_KNOWN_HOSTS"
+        msg: "SSH_KNOWN_HOSTS is not set"
     cmds:
       - |
+        mkdir -p ~/.ssh
+        printf '%s\n' "$SSH_KNOWN_HOSTS" >> ~/.ssh/known_hosts
         rsync -avz --delete \
           --exclude='*.apk' \
           --exclude='*.tar.gz' \
-          -e "ssh -o StrictHostKeyChecking=no" \
           website/public/ \
           ${SSH_USER}@${SSH_HOST}:public_html/
 

ci/main.go

@@ -195,7 +195,8 @@ func (m *Ci) toolchain() *dagger.Container {
 		WithUser("ci").
 		WithExec([]string{"/bin/sh", "-c",
 			`tmp=$(mktemp); trap 'rm -f "$tmp"' EXIT; ` +
-				`yes | sdkmanager "ndk;28.2.13676358" "cmake;3.22.1" "build-tools;35.0.0" "platforms;android-34" >"$tmp" 2>&1 || { cat "$tmp"; exit 1; }`})
+				`yes | sdkmanager "ndk;28.2.13676358" "cmake;3.22.1" "build-tools;35.0.0" "platforms;android-34" >"$tmp" 2>&1 || { cat "$tmp"; exit 1; }`}).
+		WithExec([]string{"flutter", "precache", "--linux", "--no-android", "--no-ios"})
 }
 
 // Base is the Flutter toolchain container with mutable cache mounts attached.
@@ -318,12 +319,13 @@ func (m *Ci) Hugo() *dagger.Container {
 }
 
 // Deploy container for rsync/ssh
-func (m *Ci) Deployer(sshKey *dagger.Secret) *dagger.Container {
+func (m *Ci) Deployer(sshKey *dagger.Secret, knownHosts *dagger.Secret) *dagger.Container {
 	return dag.Container().
 		From("alpine:3.21").
 		WithExec([]string{"apk", "--no-cache", "add", "rsync", "openssh-client", "python3", "tar"}).
 		WithMountedSecret("/root/.ssh/id_ed25519", sshKey, dagger.ContainerWithMountedSecretOpts{Mode: 0600}).
-		WithEnvVariable("RSYNC_RSH", "ssh -o StrictHostKeyChecking=no -i /root/.ssh/id_ed25519")
+		WithMountedSecret("/root/.ssh/known_hosts", knownHosts, dagger.ContainerWithMountedSecretOpts{Mode: 0644}).
+		WithEnvVariable("RSYNC_RSH", "ssh -i /root/.ssh/id_ed25519")
 }
 
 // Stalwart mail server service for backend and integration tests.
@@ -514,6 +516,7 @@ func (m *Ci) Check(ctx context.Context) (string, error) {
 func (m *Ci) GenerateBuildHistory(
 	ctx context.Context,
 	sshKey *dagger.Secret,
+	knownHosts *dagger.Secret,
 	sshUser string,
 	sshHost string,
 ) *dagger.Directory {
@@ -525,7 +528,7 @@ func (m *Ci) GenerateBuildHistory(
 		From("python:3.12-alpine").
 		WithExec([]string{"apk", "add", "--no-cache", "openssh-client"}).
 		WithMountedSecret("/root/.ssh/id_ed25519", sshKey, dagger.ContainerWithMountedSecretOpts{Mode: 0600}).
-		WithExec([]string{"chmod", "700", "/root/.ssh"}).
+		WithMountedSecret("/root/.ssh/known_hosts", knownHosts, dagger.ContainerWithMountedSecretOpts{Mode: 0644}).
 		WithEnvVariable("SSH_USER", sshUser).
 		WithEnvVariable("SSH_HOST", sshHost).
 		WithDirectory("/src", scriptSource).
@@ -538,10 +541,11 @@ func (m *Ci) GenerateBuildHistory(
 func (m *Ci) BuildWebsite(
 	ctx context.Context,
 	sshKey *dagger.Secret,
+	knownHosts *dagger.Secret,
 	sshUser string,
 	sshHost string,
 ) *dagger.Directory {
-	buildHistory := m.GenerateBuildHistory(ctx, sshKey, sshUser, sshHost)
+	buildHistory := m.GenerateBuildHistory(ctx, sshKey, knownHosts, sshUser, sshHost)
 
 	websiteSource := m.Source.Filter(dagger.DirectoryFilterOpts{
 		Include: []string{"website/"},
@@ -558,12 +562,13 @@ func (m *Ci) BuildWebsite(
 func (m *Ci) PublishWebsite(
 	ctx context.Context,
 	sshKey *dagger.Secret,
+	knownHosts *dagger.Secret,
 	sshUser string,
 	sshHost string,
 ) (string, error) {
-	public := m.BuildWebsite(ctx, sshKey, sshUser, sshHost)
+	public := m.BuildWebsite(ctx, sshKey, knownHosts, sshUser, sshHost)
 
-	return m.Deployer(sshKey).
+	return m.Deployer(sshKey, knownHosts).
 		WithDirectory("/public", public).
 		WithExec([]string{"rsync", "-avz", "--delete",
 			"--exclude=*.apk", "--exclude=*.tar.gz",
@@ -589,6 +594,7 @@ func (m *Ci) BuildLinuxRelease() *dagger.Directory {
 func (m *Ci) DeployLinux(
 	ctx context.Context,
 	sshKey *dagger.Secret,
+	knownHosts *dagger.Secret,
 	sshUser string,
 	sshHost string,
 	commitHash string,
@@ -599,11 +605,11 @@ func (m *Ci) DeployLinux(
 	remoteDir := fmt.Sprintf("public_html/builds/%s", datePath)
 	tarball := fmt.Sprintf("sharedinbox-linux-amd64-%s.tar.gz", commitHash)
 
-	return m.Deployer(sshKey).
+	return m.Deployer(sshKey, knownHosts).
 		WithDirectory("/bundle", bundle).
 		WithExec([]string{"/bin/sh", "-c", fmt.Sprintf("tar -czf /tmp/%s -C /bundle .", tarball)}).
-		WithExec([]string{"ssh", "-o", "StrictHostKeyChecking=no", "-i", "/root/.ssh/id_ed25519", fmt.Sprintf("%s@%s", sshUser, sshHost), fmt.Sprintf("mkdir -p %s", remoteDir)}).
-		WithExec([]string{"/bin/sh", "-c", fmt.Sprintf("scp -o StrictHostKeyChecking=no -i /root/.ssh/id_ed25519 /tmp/%s %s@%s:%s/%s", tarball, sshUser, sshHost, remoteDir, tarball)}).
+		WithExec([]string{"ssh", "-i", "/root/.ssh/id_ed25519", fmt.Sprintf("%s@%s", sshUser, sshHost), fmt.Sprintf("mkdir -p %s", remoteDir)}).
+		WithExec([]string{"/bin/sh", "-c", fmt.Sprintf("scp -i /root/.ssh/id_ed25519 /tmp/%s %s@%s:%s/%s", tarball, sshUser, sshHost, remoteDir, tarball)}).
 		Stdout(ctx)
 }
 
@@ -626,6 +632,7 @@ func (m *Ci) BuildAndroidApk(keystoreBase64 *dagger.Secret, keystorePassword *da
 func (m *Ci) DeployApk(
 	ctx context.Context,
 	sshKey *dagger.Secret,
+	knownHosts *dagger.Secret,
 	sshUser string,
 	sshHost string,
 	commitHash string,
@@ -639,10 +646,10 @@ func (m *Ci) DeployApk(
 	remoteDir := fmt.Sprintf("public_html/builds/%s", datePath)
 	apkName := fmt.Sprintf("sharedinbox-mua-%s.apk", commitHash)
 
-	return m.Deployer(sshKey).
+	return m.Deployer(sshKey, knownHosts).
 		WithFile("/tmp/app.apk", apk).
-		WithExec([]string{"ssh", "-o", "StrictHostKeyChecking=no", "-i", "/root/.ssh/id_ed25519", fmt.Sprintf("%s@%s", sshUser, sshHost), fmt.Sprintf("mkdir -p %s", remoteDir)}).
-		WithExec([]string{"/bin/sh", "-c", fmt.Sprintf("scp -o StrictHostKeyChecking=no -i /root/.ssh/id_ed25519 /tmp/app.apk %s@%s:%s/%s", sshUser, sshHost, remoteDir, apkName)}).
+		WithExec([]string{"ssh", "-i", "/root/.ssh/id_ed25519", fmt.Sprintf("%s@%s", sshUser, sshHost), fmt.Sprintf("mkdir -p %s", remoteDir)}).
+		WithExec([]string{"/bin/sh", "-c", fmt.Sprintf("scp -i /root/.ssh/id_ed25519 /tmp/app.apk %s@%s:%s/%s", sshUser, sshHost, remoteDir, apkName)}).
 		Stdout(ctx)
 }
 
@@ -804,7 +811,7 @@ func (m *Ci) Graph() string {
 ` + "```" + `mermaid
 flowchart TD
     subgraph dagger ["Dagger · Check pipeline"]
-        toolchain["toolchain\nflutter:3.41.6 + NDK + apt"]
+        toolchain["toolchain\nflutter:3.41.6 + NDK + apt + precache"]
         pubGet["pubGetLayer\nflutter pub get"]
         codegen["codegenBase\nbuild_runner build\n(shared cache)"]
         stalwart(["Stalwart service\nIMAP · JMAP · SMTP · Sieve"])
@@ -835,16 +842,25 @@ flowchart TD
         integration --> check
     end
 
-    subgraph forgejo ["Codeberg CI · .forgejo/workflows/ci.yml"]
+    subgraph forgejo_ci ["Codeberg CI · ci.yml (push/PR, source paths only)"]
         ciCheck["check"]
-        buildLinux["build-linux\n(main only)"]
-        deployPS["deploy-playstore\n(main only)"]
-        pubWeb["publish-website\n(main only)"]
+    end
 
-        ciCheck --> buildLinux
-        ciCheck --> deployPS
+    subgraph forgejo_deploy ["Codeberg CI · deploy.yml (hourly schedule + workflow_dispatch)"]
+        detectChanges["check-changes\ndetect android / linux diff"]
+        buildLinux["build-linux\n(linux changed)"]
+        deployPS["deploy-playstore\n(android changed)"]
+        deployApk["deploy-apk\n(android changed)"]
+        fbTest["test-android-firebase\n(android changed)"]
+        pubWeb["publish-website\n(any build succeeded)"]
+
+        detectChanges --> buildLinux
+        detectChanges --> deployPS
+        detectChanges --> deployApk
+        detectChanges --> fbTest
         buildLinux  --> pubWeb
         deployPS    --> pubWeb
+        deployApk   --> pubWeb
     end
 
     check -- "task check-dagger" --> ciCheck

lib/core/sync/account_sync_manager.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 
 import 'package:enough_mail/enough_mail.dart' as imap;
+import 'package:flutter/services.dart' show MissingPluginException;
 import 'package:sharedinbox/core/models/account.dart';
 import 'package:sharedinbox/core/models/email.dart' show SyncEmailsResult;
 import 'package:sharedinbox/core/repositories/account_repository.dart';
@@ -294,6 +295,7 @@ class _AccountSync implements _SyncLoop {
 
   bool _isPermanentError(Object e) {
     if (isTlsConfigError(e)) return true;
+    if (e is MissingPluginException) return true;
     final s = e.toString().toLowerCase();
     // enough_mail doesn't always have typed exceptions for auth, so we check strings.
     return s.contains('invalid credentials') ||
@@ -546,6 +548,7 @@ class _JmapAccountSync implements _SyncLoop {
 
   bool _isPermanentError(Object e) {
     if (isTlsConfigError(e)) return true;
+    if (e is MissingPluginException) return true;
     final s = e.toString().toLowerCase();
     return s.contains('invalid credentials') ||
         s.contains('authentication failed') ||

lib/ui/screens/about_screen.dart

@@ -47,10 +47,14 @@ class _AboutScreenState extends ConsumerState<AboutScreen> {
     final osName = _capitalize(Platform.operatingSystem);
     final isDark = MediaQuery.of(context).platformBrightness == Brightness.dark;
 
-    return '## sharedinbox.de\n\n'
+    final gitCommitLine = _gitHash.isNotEmpty
+        ? '| Git Commit | [$_gitHash](https://codeberg.org/guettli/sharedinbox/commit/$_gitHash) |\n'
+        : '';
+    return '## [sharedinbox.de](https://sharedinbox.de)\n\n'
         '| Property | Value |\n'
         '|----------|-------|\n'
         '| App Version | $versionDisplay |\n'
+        '$gitCommitLine'
         '| Platform | ${Platform.operatingSystem} |\n'
         '| $osName Version | ${Platform.operatingSystemVersion} |\n'
         '| Resolution | ${physW}x$physH px'

lib/ui/screens/account_receive_screen.dart

@@ -32,11 +32,15 @@ enum _Step { generatingKey, showingPubKey, scanning, importing, done, error }
 class _AccountReceiveScreenState extends ConsumerState<AccountReceiveScreen> {
   _Step _step = _Step.generatingKey;
   ShareKeyMaterial? _keyMaterial;
+  DateTime? _keyExpiresAt;
   String? _pubKeyQr;
   String? _errorMessage;
   bool _scannerActive = false;
 
   MobileScannerController? _scannerController;
+  // True when the scanner plugin fails to initialise at runtime (e.g.
+  // MissingPluginException on some Android builds).
+  bool _scannerFailed = false;
 
   @override
   void initState() {
@@ -61,6 +65,7 @@ class _AccountReceiveScreenState extends ConsumerState<AccountReceiveScreen> {
       );
       setState(() {
         _keyMaterial = material;
+        _keyExpiresAt = DateTime.now().toUtc().add(const Duration(minutes: 20));
         _pubKeyQr = qr;
         _step = _Step.showingPubKey;
       });
@@ -76,8 +81,37 @@ class _AccountReceiveScreenState extends ConsumerState<AccountReceiveScreen> {
     setState(() {
       _step = _Step.scanning;
       _scannerActive = true;
-      _scannerController = MobileScannerController();
     });
+    if (_cameraScanSupported()) {
+      unawaited(_initScanner());
+    }
+  }
+
+  // Pre-flight: probe the scanner's permission-state method to verify the
+  // plugin is registered.  MissingPluginException is thrown on Android builds
+  // where the plugin is not linked (issue #204).  All other exceptions mean
+  // the plugin exists but something else failed — the MobileScanner widget
+  // will surface those via its own error builder.
+  Future<void> _initScanner() async {
+    bool available = false;
+    try {
+      await const MethodChannel(
+        'dev.steenbakker.mobile_scanner/scanner/method',
+      ).invokeMethod<int>('state');
+      available = true;
+    } on MissingPluginException {
+      // Plugin not registered on this device; text fallback will be shown.
+    } catch (_) {
+      // Plugin registered but state check failed; let the scanner widget
+      // handle it via its errorBuilder.
+      available = true;
+    }
+    if (!mounted) return;
+    if (available) {
+      setState(() => _scannerController = MobileScannerController());
+    } else {
+      setState(() => _scannerFailed = true);
+    }
   }
 
   Future<void> _onScanned(String rawValue) async {
@@ -244,7 +278,7 @@ class _AccountReceiveScreenState extends ConsumerState<AccountReceiveScreen> {
             },
           ),
           const SizedBox(height: 8),
-          const _ExpiryHint(),
+          _ExpiryHint(expiresAt: _keyExpiresAt!),
           const SizedBox(height: 32),
           if (_errorMessage != null) ...[
             Text(
@@ -266,11 +300,14 @@ class _AccountReceiveScreenState extends ConsumerState<AccountReceiveScreen> {
   }
 
   Widget _buildScannerView(BuildContext context) {
-    // On platforms where the camera scanner is not available (Linux desktop),
-    // fall back to a text-input field.
-    if (!_cameraScanSupported()) {
+    // Fall back to text input when the platform has no camera support or when
+    // the scanner plugin fails to initialise at runtime (MissingPluginException).
+    if (!_cameraScanSupported() || _scannerFailed) {
       return _buildTextFallbackView(context);
     }
+    if (_scannerController == null) {
+      return const Center(child: CircularProgressIndicator());
+    }
 
     return Stack(
       children: [
@@ -371,8 +408,37 @@ bool _cameraScanSupported() =>
     Platform.isMacOS ||
     Platform.isWindows;
 
-class _ExpiryHint extends StatelessWidget {
-  const _ExpiryHint();
+class _ExpiryHint extends StatefulWidget {
+  const _ExpiryHint({required this.expiresAt});
+
+  final DateTime expiresAt;
+
+  @override
+  State<_ExpiryHint> createState() => _ExpiryHintState();
+}
+
+class _ExpiryHintState extends State<_ExpiryHint> {
+  late Timer _timer;
+
+  @override
+  void initState() {
+    super.initState();
+    _timer = Timer.periodic(const Duration(seconds: 1), (_) => setState(() {}));
+  }
+
+  @override
+  void dispose() {
+    _timer.cancel();
+    super.dispose();
+  }
+
+  String _formatRemaining() {
+    final remaining = widget.expiresAt.difference(DateTime.now().toUtc());
+    if (remaining.isNegative) return 'expired';
+    final minutes = remaining.inMinutes;
+    final seconds = remaining.inSeconds % 60;
+    return '${minutes.toString().padLeft(2, '0')}:${seconds.toString().padLeft(2, '0')}';
+  }
 
   @override
   Widget build(BuildContext context) {
@@ -382,7 +448,7 @@ class _ExpiryHint extends StatelessWidget {
         Icon(Icons.timer_outlined, size: 14, color: Colors.grey[600]),
         const SizedBox(width: 4),
         Text(
-          'This key expires in 20 minutes',
+          'This key expires in ${_formatRemaining()}',
           style: TextStyle(fontSize: 12, color: Colors.grey[600]),
         ),
       ],

lib/ui/screens/account_send_screen.dart

@@ -45,12 +45,42 @@ class _AccountSendScreenState extends ConsumerState<AccountSendScreen> {
   bool _scannerActive = true;
 
   MobileScannerController? _scannerController;
+  // True when the scanner plugin fails to initialise at runtime (e.g.
+  // MissingPluginException on some Android builds).
+  bool _scannerFailed = false;
 
   @override
   void initState() {
     super.initState();
     if (_cameraScanSupported()) {
-      _scannerController = MobileScannerController();
+      unawaited(_initScanner());
+    }
+  }
+
+  // Pre-flight: probe the scanner's permission-state method to verify the
+  // plugin is registered.  MissingPluginException is thrown on Android builds
+  // where the plugin is not linked (issue #204).  All other exceptions mean
+  // the plugin exists but something else failed — the MobileScanner widget
+  // will surface those via its own error builder.
+  Future<void> _initScanner() async {
+    bool available = false;
+    try {
+      await const MethodChannel(
+        'dev.steenbakker.mobile_scanner/scanner/method',
+      ).invokeMethod<int>('state');
+      available = true;
+    } on MissingPluginException {
+      // Plugin not registered on this device; text fallback will be shown.
+    } catch (_) {
+      // Plugin registered but state check failed; let the scanner widget
+      // handle it via its errorBuilder.
+      available = true;
+    }
+    if (!mounted) return;
+    if (available) {
+      setState(() => _scannerController = MobileScannerController());
+    } else {
+      setState(() => _scannerFailed = true);
     }
   }
 
@@ -178,9 +208,12 @@ class _AccountSendScreenState extends ConsumerState<AccountSendScreen> {
   }
 
   Widget _buildScanStep(BuildContext context) {
-    if (!_cameraScanSupported()) {
+    if (!_cameraScanSupported() || _scannerFailed) {
       return _buildTextFallbackView(context);
     }
+    if (_scannerController == null) {
+      return const Center(child: CircularProgressIndicator());
+    }
 
     return Stack(
       children: [

lib/ui/screens/crash_screen.dart

@@ -1,5 +1,6 @@
 import 'dart:io';
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:package_info_plus/package_info_plus.dart';
@@ -10,27 +11,42 @@ class CrashScreen extends StatelessWidget {
     super.key,
     required this.exception,
     required this.stackTrace,
+    this.gitHash = const String.fromEnvironment('GIT_HASH'),
   });
 
   final Object exception;
   final StackTrace? stackTrace;
+  final String gitHash;
 
-  static const _gitHash = String.fromEnvironment('GIT_HASH');
+  String get _buildMode {
+    if (kDebugMode) return 'debug';
+    if (kProfileMode) return 'profile';
+    return 'release';
+  }
 
-  Future<String> _buildReport() async {
-    String version = 'unknown';
+  Future<String> _fetchVersion() async {
     try {
       final info = await PackageInfo.fromPlatform();
-      version = '${info.version}+${info.buildNumber}';
-    } catch (_) {}
+      return '${info.version}+${info.buildNumber}';
+    } catch (_) {
+      return 'unknown';
+    }
+  }
+
+  Future<String> _buildReport() async {
+    final version = await _fetchVersion();
     final platform =
         '${Platform.operatingSystem} ${Platform.operatingSystemVersion}';
-    final gitLine = _gitHash.isNotEmpty
-        ? 'Git Commit: [$_gitHash](https://codeberg.org/guettli/sharedinbox/commit/$_gitHash)\n'
+    final gitLine = gitHash.isNotEmpty
+        ? 'Git Commit: [$gitHash](https://codeberg.org/guettli/sharedinbox/commit/$gitHash)\n'
         : '';
+    final timestamp = DateTime.now().toUtc().toIso8601String();
     return 'App Version: $version\n'
+        'Build Mode: $_buildMode\n'
         '$gitLine'
-        'Platform: $platform\n\n'
+        'Platform: $platform\n'
+        'Dart: ${Platform.version}\n'
+        'Timestamp: $timestamp\n\n'
         'Error:\n```\n$exception\n```\n\n'
         'Stack Trace:\n```\n$stackTrace\n```';
   }
@@ -56,13 +72,40 @@ class CrashScreen extends StatelessWidget {
                   style: Theme.of(ctx).textTheme.titleMedium,
                   textAlign: TextAlign.center,
                 ),
-                if (_gitHash.isNotEmpty) ...[
-                  const SizedBox(height: 8),
-                  const Text(
-                    'Git Commit: $_gitHash',
-                    style: TextStyle(fontSize: 12, color: Colors.grey),
+                const SizedBox(height: 4),
+                FutureBuilder<String>(
+                  future: _fetchVersion(),
+                  builder: (context, snapshot) => Text(
+                    'v${snapshot.data ?? '…'}  •  $_buildMode  •  '
+                    '${Platform.operatingSystem} ${Platform.operatingSystemVersion}',
+                    style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                          color: Colors.grey[600],
+                        ),
                     textAlign: TextAlign.center,
                   ),
+                ),
+                if (gitHash.isNotEmpty) ...[
+                  const SizedBox(height: 8),
+                  GestureDetector(
+                    onTap: () async {
+                      final url = Uri.parse(
+                        'https://codeberg.org/guettli/sharedinbox/commit/$gitHash',
+                      );
+                      await launchUrl(
+                        url,
+                        mode: LaunchMode.externalApplication,
+                      );
+                    },
+                    child: Text(
+                      'Git Commit: $gitHash',
+                      style: const TextStyle(
+                        fontSize: 12,
+                        color: Colors.blue,
+                        decoration: TextDecoration.underline,
+                      ),
+                      textAlign: TextAlign.center,
+                    ),
+                  ),
                 ],
                 const SizedBox(height: 24),
                 const Text(
@@ -106,32 +149,6 @@ class CrashScreen extends StatelessWidget {
                     ),
                   ),
                 ],
-                if (_gitHash.isNotEmpty) ...[
-                  const SizedBox(height: 16),
-                  const Text(
-                    'Git Commit:',
-                    style: TextStyle(fontWeight: FontWeight.bold),
-                  ),
-                  const SizedBox(height: 4),
-                  GestureDetector(
-                    onTap: () async {
-                      final url = Uri.parse(
-                        'https://codeberg.org/guettli/sharedinbox/commit/$_gitHash',
-                      );
-                      await launchUrl(
-                        url,
-                        mode: LaunchMode.externalApplication,
-                      );
-                    },
-                    child: const Text(
-                      _gitHash,
-                      style: TextStyle(
-                        color: Colors.blue,
-                        decoration: TextDecoration.underline,
-                      ),
-                    ),
-                  ),
-                ],
                 const SizedBox(height: 24),
                 FilledButton.icon(
                   onPressed: () async {

scripts/agent_loop.py

@@ -8,12 +8,15 @@ Flow
    a. Age > 1 h  → kill it, set its issue to State/Question, exit 1
    b. Age ≤ 1 h  → print status, exit 0  (let it keep working)
 2. No agent running → extract pending_issue from state (if any), then check CI
-   a. CI is running         → save pending-ci state, exit 0
-   b. Latest CI failed      → start fix-CI agent (preserving pending_issue), exit 0
-   c. CI ok + pending_issue → close the issue (CI passed), exit 0
-   d. CI ok (or no run yet) → find oldest Ready issue, start issue agent,
-                              save state, exit 0
-   e. No Ready issues       → print "nothing to do", exit 0
+   a. pending_issue + open PR → check PR branch CI, merge/fix/wait as needed
+   b. Catch-up: orphaned issue-N-fix PRs with passing CI → merge them
+   c. Main CI running         → save pending-ci state, exit 0
+   d. Main CI failed          → start fix-CI agent (pushes fix to main), exit 0
+   e. Main CI ok + pending_issue → close the issue, exit 0  (dead code path —
+                                   section 2a always returns first)
+   f. Main CI ok (or no run yet) → find oldest Ready issue, start issue agent,
+                                   save state, exit 0
+   g. No Ready issues         → print "nothing to do", exit 0
 
 Issue agents must NOT close the issue themselves; the loop closes it after CI passes.
 
@@ -31,6 +34,7 @@ To resume the Claude conversation, look up the session UUID first:
 import argparse
 import json
 import os
+import re
 import shlex
 import subprocess
 import sys
@@ -141,10 +145,21 @@ def _ready_issues() -> list[dict]:
     return ready
 
 
-def _latest_ci_run() -> dict | None:
-    data = _tea_get(f"repos/{REPO}/actions/runs?limit=1")
+def _latest_main_ci_run() -> dict | None:
+    """Return the latest ci.yml run on the main branch.
+
+    Forgejo reports scheduled/dispatch workflows (e.g. deploy.yml) with
+    event=push and prettyref=main, so filtering by event alone is not enough.
+    We also require workflow_id == "ci.yml".
+    """
+    data = _tea_get(f"repos/{REPO}/actions/runs?limit=20")
     runs = (data or {}).get("workflow_runs", [])
-    return runs[0] if runs else None
+    for run in runs:
+        if (run.get("event") == "push"
+                and run.get("prettyref") == "main"
+                and run.get("workflow_id") == "ci.yml"):
+            return run
+    return None
 
 
 def _latest_ci_run_for_branch(branch: str) -> dict | None:
@@ -164,7 +179,7 @@ def _latest_ci_run_for_branch(branch: str) -> dict | None:
                     return run
             except (json.JSONDecodeError, AttributeError):
                 pass
-        else:
+        elif run.get("event") == "push":
             if run.get("prettyref") == branch:
                 return run
     return None
@@ -188,6 +203,40 @@ def _find_pr_for_branch(branch: str, state: str = "open") -> dict | None:
     return None
 
 
+def _open_issue_prs() -> list[dict]:
+    """Return all open PRs with issue-{N}-fix branches, oldest-first."""
+    result = subprocess.run(
+        ["fgj", "--hostname", "codeberg.org", "pr", "list",
+         "--repo", REPO, "--state", "open", "--json"],
+        capture_output=True, text=True,
+    )
+    if result.returncode != 0 or not result.stdout.strip():
+        return []
+    prs = json.loads(result.stdout)
+    issue_prs = []
+    for pr in prs:
+        head = pr.get("head", {})
+        ref = head.get("ref") or head.get("label", "").split(":")[-1]
+        if re.match(r"^issue-\d+-fix$", ref or ""):
+            issue_prs.append(pr)
+    issue_prs.sort(key=lambda p: p["number"])
+    return issue_prs
+
+
+def _latest_ci_run_for_pr(pr_number: int) -> dict | None:
+    """Return the latest CI run triggered by a pull_request event for the given PR number."""
+    data = _tea_get(f"repos/{REPO}/actions/runs?event=pull_request&limit=50")
+    runs = (data or {}).get("workflow_runs", [])
+    for run in runs:
+        try:
+            payload = json.loads(run.get("event_payload", "{}"))
+            if payload.get("pull_request", {}).get("number") == pr_number:
+                return run
+        except (json.JSONDecodeError, AttributeError):
+            pass
+    return None
+
+
 def _merge_pr(pr_number: int) -> None:
     """Squash-merge a PR via fgj."""
     _fgj("pr", "merge", str(pr_number), "--repo", REPO, "--merge-method", "squash")
@@ -298,6 +347,15 @@ def _agent_alive(state: dict) -> bool:
         return True
 
 
+def _is_claude_process(pid: int) -> bool:
+    """Return True if pid's comm name indicates it is a claude/node process."""
+    try:
+        comm = Path(f"/proc/{pid}/comm").read_text().strip()
+        return comm in ("claude", "node")
+    except OSError:
+        return False
+
+
 def _agent_age_seconds(state: dict) -> float:
     """Seconds elapsed since the agent was launched, from the state file timestamp."""
     try:
@@ -332,11 +390,13 @@ def _git_summary() -> str:
 def _kill_agent(state: dict) -> None:
     """Forcefully stop the running agent."""
     pid = state.get("pid")
-    if pid:
+    if pid and _is_claude_process(pid):
         try:
             os.kill(pid, 9)
         except ProcessLookupError:
             pass
+    elif pid:
+        print(f"WARNING: pid {pid} is not a claude process — skipping kill to avoid hitting recycled PID")
 
 
 # ── subcommands ───────────────────────────────────────────────────────────────
@@ -474,6 +534,9 @@ def _run_loop() -> int:
                     "Fetch the CI logs using the task ci-logs command or the Codeberg API. "
                     "Identify the failure, fix it, commit, and push to the same branch. "
                     "Do NOT push to main, do NOT close the issue, do NOT merge the PR. "
+                    "Do NOT reference any issue numbers in commit messages "
+                    "(no 'closes #N', 'fixes #N', or similar) — auto-closing the wrong "
+                    "issue via a commit message would be a bug. "
                     "Verify locally with 'task check' before pushing. "
                     "When done, stop."
                 )
@@ -512,7 +575,25 @@ def _run_loop() -> int:
 
             # CI passed on the PR branch — squash-merge and close.
             print(f"CI passed {_ci_run_url(pr_run['id'])} on branch {branch!r} — merging PR #{pr_number}.")
-            _merge_pr(pr_number)
+            try:
+                _merge_pr(pr_number)
+            except RuntimeError as e:
+                print(f"Merge of PR #{pr_number} failed: {e} — setting to State/Question.")
+                _set_labels(pending_issue, add=[LABEL_QUESTION], remove=[LABEL_IN_PROGRESS])
+                _comment_issue(
+                    pending_issue,
+                    f"Automatic merge of PR #{pr_number} failed: {e}. Please merge manually.",
+                )
+                return 0
+            if _find_pr_for_branch(branch):
+                print(f"PR #{pr_number} is still open after merge attempt — setting to State/Question.")
+                _set_labels(pending_issue, add=[LABEL_QUESTION], remove=[LABEL_IN_PROGRESS])
+                _comment_issue(
+                    pending_issue,
+                    f"Automatic merge of PR #{pr_number} failed (PR is still open after the "
+                    "merge command). Please merge manually.",
+                )
+                return 0
             _close_issue(pending_issue)
             print(f"Merged PR #{pr_number} and closed {_issue_url(pending_issue)}.")
             return 0
@@ -538,8 +619,59 @@ def _run_loop() -> int:
         )
         return 0
 
-    # ── 3. Global CI check (agent pushed to main, or no pending issue) ────────
-    run = _latest_ci_run()
+    # ── 2b. Catch-up: scan open issue-N-fix PRs orphaned by a cleared state ─────
+    # This handles PRs whose CI has passed but were never merged because the
+    # state file was cleared (loop restart, killed agent, manual intervention).
+    open_prs = _open_issue_prs()
+    for pr in open_prs:
+        pr_number = pr["number"]
+        pr_url = f"{REPO_URL}/pulls/{pr_number}"
+        head = pr.get("head", {})
+        branch = head.get("ref") or head.get("label", "").split(":")[-1]
+        m = re.match(r"^issue-(\d+)-fix$", branch or "")
+        issue_num = int(m.group(1)) if m else None
+        pr_run = _latest_ci_run_for_pr(pr_number)
+
+        if pr_run and pr_run.get("status") == "running":
+            print(f"Catch-up: CI {_ci_run_url(pr_run['id'])} on PR #{pr_number} still running. Waiting.")
+            _write_state(None, issue_num, "pending-ci")
+            return 0
+
+        if pr_run and pr_run.get("status") in ("failure", "error"):
+            print(f"Catch-up: CI {_ci_run_url(pr_run['id'])} on PR #{pr_number} failed — skipping.")
+            continue
+
+        if pr_run and pr_run.get("status") == "success":
+            print(f"Catch-up: CI passed on PR #{pr_number} ({pr_url}) — merging.")
+            try:
+                _merge_pr(pr_number)
+            except RuntimeError as e:
+                print(f"Catch-up: merge of PR #{pr_number} failed: {e} — skipping.")
+                continue
+            # Verify the merge actually happened; fgj can exit 0 without merging
+            # (e.g. branch-protection rules not satisfied).
+            if _find_pr_for_branch(branch):
+                print(
+                    f"Catch-up: PR #{pr_number} is still open after merge attempt "
+                    "— skipping to avoid infinite retry."
+                )
+                if issue_num:
+                    _set_labels(issue_num, add=[LABEL_QUESTION], remove=[LABEL_IN_PROGRESS])
+                    _comment_issue(
+                        issue_num,
+                        f"Automatic merge of PR #{pr_number} failed (PR is still open "
+                        "after the merge command). Please merge manually.",
+                    )
+                continue
+            if issue_num:
+                _close_issue(issue_num)
+                print(f"Merged PR #{pr_number} and closed issue #{issue_num}.")
+            else:
+                print(f"Merged PR #{pr_number}.")
+            return 0
+
+    # ── 3. Global CI check (main branch only) ────────────────────────────────
+    run = _latest_main_ci_run()
 
     if run and run.get("status") == "running":
         print(f"CI run {_ci_run_url(run['id'])} is still running. Waiting.")
@@ -548,17 +680,39 @@ def _run_loop() -> int:
         return 0
 
     if run and run.get("status") in ("failure", "error"):
+        # Guard: if the same main CI run has been failing since the last ci-fix
+        # agent started, that agent pushed to a branch instead of main.  Before
+        # spawning another agent, check whether any CI run is currently in
+        # progress (the branch run) and wait if so.
+        if ci_run_id_at_start is not None and run["id"] == ci_run_id_at_start:
+            check = _tea_get(f"repos/{REPO}/actions/runs?limit=5")
+            in_flight = [
+                r for r in (check or {}).get("workflow_runs", [])
+                if r.get("status") == "running"
+            ]
+            if in_flight:
+                print(
+                    f"Main CI still shows the same failed run {run['id']}; "
+                    f"{_ci_run_url(in_flight[0]['id'])} is running "
+                    "(previous ci-fix pushed to a branch). Waiting."
+                )
+                return 0
         print(f"CI run {_ci_run_url(run['id'])} failed — starting fix agent.")
         prompt = (
-            "The Codeberg CI for guettli/sharedinbox just failed. "
+            "The Codeberg CI for guettli/sharedinbox just failed on the main branch. "
             f"The CI run ID is {run['id']}. "
             "Fetch the CI logs using the task ci-logs command or the Codeberg API. "
-            "Identify the failure, fix it, commit, and push. "
+            "Identify the failure, fix it, commit, and push directly to main. "
             "Verify locally with 'task check' before pushing. "
+            "Do NOT reference any issue numbers in commit messages "
+            "(no 'closes #N', 'fixes #N', or similar) — this is a CI fix, "
+            "not an issue fix, and auto-closing an issue via a commit message would be a bug. "
+            "Do NOT close any issues. "
             "When done, stop."
         )
         pid = _start_agent(prompt, "ci-fix")
-        _write_state(pid, pending_issue, "ci-fix", session_name="ci-fix")
+        _write_state(pid, pending_issue, "ci-fix", session_name="ci-fix",
+                     ci_run_id=run["id"] if run else None)
         return 0
 
     # CI is ok (or no run).
@@ -617,7 +771,10 @@ Instructions:
 - Implement the required change, following the existing code style.
 - Write or update tests as appropriate.
 - Run 'task check' locally and fix any failures before committing.
-- Commit with a descriptive message referencing the issue number (e.g. "feat: ... (#{issue_number})").
+- Commit with a descriptive message and include (#{issue_number}) in the title,
+  e.g. "feat: description (#{issue_number})".
+  Do NOT use "Closes #N" or "Fixes #N" keywords — the loop closes the issue
+  after CI passes; using those keywords would close it prematurely or wrongly.
 - Create a branch named `issue-{issue_number}-fix`, push your changes there, and open a PR against main:
       git checkout -b issue-{issue_number}-fix
       git push -u origin issue-{issue_number}-fix

scripts/generate_build_history.py

@@ -33,9 +33,6 @@ def list_remote_files(ssh_user: str, ssh_host: str, pattern: str) -> list[str]:
     result = subprocess.run(
         [
             "ssh",
-            "-v",
-            "-o", "StrictHostKeyChecking=no",
-            "-i", "/root/.ssh/id_ed25519",
             f"{ssh_user}@{ssh_host}",
             f"find {REMOTE_BUILDS_DIR} -name '{pattern}' -type f | sort",
         ],

scripts/test_agent_loop.py

@@ -88,21 +88,47 @@ class TestAgentAlive(unittest.TestCase):
         self.assertFalse(agent_loop._agent_alive({"pid": None}))
 
 
+class TestIsClaudeProcess(unittest.TestCase):
+    def test_returns_true_for_claude_comm(self):
+        with patch.object(agent_loop.Path, "read_text", return_value="claude\n"):
+            self.assertTrue(agent_loop._is_claude_process(1234))
+
+    def test_returns_true_for_node_comm(self):
+        with patch.object(agent_loop.Path, "read_text", return_value="node\n"):
+            self.assertTrue(agent_loop._is_claude_process(1234))
+
+    def test_returns_false_for_other_process(self):
+        with patch.object(agent_loop.Path, "read_text", return_value="bash\n"):
+            self.assertFalse(agent_loop._is_claude_process(1234))
+
+    def test_returns_false_when_proc_missing(self):
+        with patch.object(agent_loop.Path, "read_text", side_effect=OSError):
+            self.assertFalse(agent_loop._is_claude_process(1234))
+
+
 class TestKillAgent(unittest.TestCase):
     def test_kill_sends_sigkill(self):
-        with patch("agent_loop.os.kill") as mock_kill:
-            agent_loop._kill_agent({"pid": 1234})
-            mock_kill.assert_called_once_with(1234, 9)
+        with patch("agent_loop._is_claude_process", return_value=True):
+            with patch("agent_loop.os.kill") as mock_kill:
+                agent_loop._kill_agent({"pid": 1234})
+                mock_kill.assert_called_once_with(1234, 9)
 
     def test_kill_ignores_missing_process(self):
-        with patch("agent_loop.os.kill", side_effect=ProcessLookupError):
-            agent_loop._kill_agent({"pid": 1234})  # Should not raise.
+        with patch("agent_loop._is_claude_process", return_value=True):
+            with patch("agent_loop.os.kill", side_effect=ProcessLookupError):
+                agent_loop._kill_agent({"pid": 1234})  # Should not raise.
 
     def test_kill_noop_when_no_pid(self):
         with patch("agent_loop.os.kill") as mock_kill:
             agent_loop._kill_agent({})
             mock_kill.assert_not_called()
 
+    def test_kill_skips_recycled_pid(self):
+        with patch("agent_loop._is_claude_process", return_value=False):
+            with patch("agent_loop.os.kill") as mock_kill:
+                agent_loop._kill_agent({"pid": 1234})
+                mock_kill.assert_not_called()
+
 
 class TestStartAgent(unittest.TestCase):
     def _make_mock_proc(self, pid=42):
@@ -174,7 +200,8 @@ class TestMain(unittest.TestCase):
             return 55
 
         with patch("agent_loop._read_state", return_value=None), \
-             patch("agent_loop._latest_ci_run", return_value=None), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value=None), \
              patch("agent_loop._ready_issues", return_value=[self._make_issue(10)]), \
              patch("agent_loop._set_labels", side_effect=fake_set_labels), \
              patch("agent_loop._start_agent", side_effect=fake_start_agent), \
@@ -200,7 +227,8 @@ class TestMain(unittest.TestCase):
             captured["remove"] = remove
 
         with patch("agent_loop._read_state", return_value=None), \
-             patch("agent_loop._latest_ci_run", return_value=None), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value=None), \
              patch("agent_loop._ready_issues", return_value=[self._make_issue(7)]), \
              patch("agent_loop._set_labels", side_effect=fake_set_labels), \
              patch("agent_loop._start_agent", return_value=99), \
@@ -213,7 +241,8 @@ class TestMain(unittest.TestCase):
     def test_no_ready_issues_does_nothing(self):
         """main() exits cleanly with 0 when there are no ready issues."""
         with patch("agent_loop._read_state", return_value=None), \
-             patch("agent_loop._latest_ci_run", return_value=None), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value=None), \
              patch("agent_loop._ready_issues", return_value=[]), \
              patch("agent_loop._set_labels") as mock_labels, \
              patch("agent_loop._start_agent") as mock_start:
@@ -232,7 +261,8 @@ class TestMain(unittest.TestCase):
             return 77
 
         with patch("agent_loop._read_state", return_value=None), \
-             patch("agent_loop._latest_ci_run", return_value=None), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value=None), \
              patch("agent_loop._ready_issues", return_value=[self._make_issue(42)]), \
              patch("agent_loop._set_labels"), \
              patch("agent_loop._start_agent", side_effect=fake_start_agent), \
@@ -266,8 +296,9 @@ class TestPendingCi(unittest.TestCase):
 
     def test_closes_issue_when_ci_passes_after_agent_finishes(self):
         """After issue agent finishes, loop merges the PR and closes the issue once CI is green."""
+        # First call: PR found open. Second call (post-merge verification): PR closed.
         with patch("agent_loop._read_state", return_value=self._dead_state(10)), \
-             patch("agent_loop._find_pr_for_branch", side_effect=self._find_pr_open), \
+             patch("agent_loop._find_pr_for_branch", side_effect=[self._open_pr(), None]), \
              patch("agent_loop._latest_ci_run_for_branch", return_value={"id": 1, "status": "success"}), \
              patch("agent_loop._merge_pr") as mock_merge, \
              patch("agent_loop._close_issue") as mock_close, \
@@ -282,7 +313,7 @@ class TestPendingCi(unittest.TestCase):
         """'CI passed' line includes the CI run URL when a run is available."""
         buf = io.StringIO()
         with patch("agent_loop._read_state", return_value=self._dead_state(10)), \
-             patch("agent_loop._find_pr_for_branch", side_effect=self._find_pr_open), \
+             patch("agent_loop._find_pr_for_branch", side_effect=[self._open_pr(), None]), \
              patch("agent_loop._latest_ci_run_for_branch", return_value={"id": 4145144, "status": "success"}), \
              patch("agent_loop._merge_pr"), \
              patch("agent_loop._close_issue"), \
@@ -392,7 +423,7 @@ class TestPendingCi(unittest.TestCase):
     def test_closes_issue_after_ci_fix_and_ci_passes(self):
         """After ci-fix agent finishes and CI passes on PR branch, the pending issue is closed."""
         with patch("agent_loop._read_state", return_value=self._dead_state(10, "ci-fix")), \
-             patch("agent_loop._find_pr_for_branch", side_effect=self._find_pr_open), \
+             patch("agent_loop._find_pr_for_branch", side_effect=[self._open_pr(), None]), \
              patch("agent_loop._latest_ci_run_for_branch", return_value={"id": 1, "status": "success"}), \
              patch("agent_loop._merge_pr") as mock_merge, \
              patch("agent_loop._close_issue") as mock_close, \
@@ -409,7 +440,8 @@ class TestPendingCi(unittest.TestCase):
             "pid": 999999999, "issue": None, "started_at": "2026-01-01T00:00:00+00:00",
             "type": "ci-fix",
         }), \
-             patch("agent_loop._latest_ci_run", return_value={"id": 1, "status": "success"}), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value={"id": 1, "status": "success"}), \
              patch("agent_loop._close_issue") as mock_close, \
              patch("agent_loop._ready_issues", return_value=[]), \
              patch("agent_loop._clear_state"):
@@ -425,7 +457,8 @@ class TestOutputFormat(unittest.TestCase):
     def test_output_starts_with_header(self):
         buf = io.StringIO()
         with patch("agent_loop._read_state", return_value=None), \
-             patch("agent_loop._latest_ci_run", return_value=None), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value=None), \
              patch("agent_loop._ready_issues", return_value=[]), \
              contextlib.redirect_stdout(buf):
             agent_loop._run_loop()
@@ -436,7 +469,8 @@ class TestOutputFormat(unittest.TestCase):
     def test_no_agent_loop_prefix_in_output(self):
         buf = io.StringIO()
         with patch("agent_loop._read_state", return_value=None), \
-             patch("agent_loop._latest_ci_run", return_value=None), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value=None), \
              patch("agent_loop._ready_issues", return_value=[]), \
              contextlib.redirect_stdout(buf):
             agent_loop._run_loop()
@@ -446,7 +480,8 @@ class TestOutputFormat(unittest.TestCase):
         run = {"id": 4145144, "status": "running"}
         buf = io.StringIO()
         with patch("agent_loop._read_state", return_value=None), \
-             patch("agent_loop._latest_ci_run", return_value=run), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value=run), \
              contextlib.redirect_stdout(buf):
             agent_loop._run_loop()
         self.assertIn("https://codeberg.org/guettli/sharedinbox/actions/runs/4145144",
@@ -456,7 +491,8 @@ class TestOutputFormat(unittest.TestCase):
         issue = {"number": 128, "title": "Fix something", "body": "", "labels": []}
         buf = io.StringIO()
         with patch("agent_loop._read_state", return_value=None), \
-             patch("agent_loop._latest_ci_run", return_value=None), \
+             patch("agent_loop._open_issue_prs", return_value=[]), \
+             patch("agent_loop._latest_main_ci_run", return_value=None), \
              patch("agent_loop._ready_issues", return_value=[issue]), \
              patch("agent_loop._set_labels"), \
              patch("agent_loop._start_agent", return_value=99), \
@@ -468,6 +504,47 @@ class TestOutputFormat(unittest.TestCase):
         self.assertIn("Fix something", output)
 
 
+class TestLatestMainCiRun(unittest.TestCase):
+    """_latest_main_ci_run() must return only ci.yml push-to-main runs."""
+
+    def _ci_run(self, run_id, status="success"):
+        return {"event": "push", "prettyref": "main", "workflow_id": "ci.yml",
+                "status": status, "id": run_id}
+
+    def _deploy_run(self, run_id, status="success"):
+        return {"event": "push", "prettyref": "main", "workflow_id": "deploy.yml",
+                "status": status, "id": run_id}
+
+    def test_skips_deploy_run_returns_ci_run(self):
+        # Forgejo reports deploy.yml schedule runs as event=push/prettyref=main;
+        # must be excluded by workflow_id filter.
+        runs = [self._deploy_run(1), self._ci_run(2)]
+        with patch("agent_loop._tea_get", return_value={"workflow_runs": runs}):
+            result = agent_loop._latest_main_ci_run()
+        self.assertIsNotNone(result)
+        self.assertEqual(result["id"], 2)
+
+    def test_returns_none_when_only_deploy_runs_exist(self):
+        runs = [self._deploy_run(1)]
+        with patch("agent_loop._tea_get", return_value={"workflow_runs": runs}):
+            result = agent_loop._latest_main_ci_run()
+        self.assertIsNone(result)
+
+    def test_returns_none_when_only_schedule_runs_exist(self):
+        runs = [{"event": "schedule", "prettyref": "main", "workflow_id": "deploy.yml",
+                 "status": "success", "id": 1}]
+        with patch("agent_loop._tea_get", return_value={"workflow_runs": runs}):
+            result = agent_loop._latest_main_ci_run()
+        self.assertIsNone(result)
+
+    def test_returns_ci_push_to_main_run(self):
+        runs = [self._ci_run(42, status="running")]
+        with patch("agent_loop._tea_get", return_value={"workflow_runs": runs}):
+            result = agent_loop._latest_main_ci_run()
+        self.assertIsNotNone(result)
+        self.assertEqual(result["id"], 42)
+
+
 class TestLatestCiRunForBranch(unittest.TestCase):
     """Tests for _latest_ci_run_for_branch — Forgejo API field mapping."""
 

test/unit/account_sync_manager_test.dart

@@ -1,6 +1,8 @@
 import 'dart:async';
 
+import 'package:flutter/services.dart' show MissingPluginException;
 import 'package:mockito/annotations.dart';
+import 'package:sharedinbox/core/models/account.dart';
 import 'package:sharedinbox/core/models/email.dart';
 import 'package:sharedinbox/core/models/mailbox.dart';
 import 'package:sharedinbox/core/repositories/account_repository.dart';
@@ -30,6 +32,40 @@ void main() {
     // This is hard to test without real loops, but we can verify it doesn't crash.
     manager.syncNow('unknown');
   });
+
+  // Regression test for issue #200: when flutter_secure_storage throws
+  // MissingPluginException (channel unavailable on the device), the IMAP sync
+  // loop must stop permanently instead of retrying indefinitely with backoff.
+  test(
+      'MissingPluginException from secure storage stops IMAP sync loop permanently',
+      () async {
+    final syncLog = FakeSyncLogRepository();
+
+    final m = AccountSyncManager(
+      _AccountRepositoryWithMissingPlugin(),
+      FakeMailboxRepositoryWithInbox(),
+      FakeEmailRepository(),
+      syncLog: syncLog,
+    );
+
+    m.start();
+
+    // Allow the first sync cycle to run and fail.
+    await Future<void>.delayed(const Duration(milliseconds: 100));
+
+    expect(syncLog.logs, hasLength(1));
+    expect(syncLog.logs.first.success, isFalse);
+
+    // Kicking the loop should have no effect once it has stopped permanently.
+    m.syncNow('1');
+    await Future<void>.delayed(const Duration(milliseconds: 100));
+
+    // Before the fix: kick triggers a retry → 2 log entries.
+    // After the fix: loop is permanently stopped → still exactly 1 entry.
+    expect(syncLog.logs, hasLength(1));
+
+    m.dispose();
+  });
 }
 
 class FakeEmailRepository implements EmailRepository {
@@ -187,3 +223,34 @@ class FakeMailboxRepositoryWithInbox implements MailboxRepository {
   @override
   Future<void> clearForResync(String accountId) async {}
 }
+
+class _AccountRepositoryWithMissingPlugin implements AccountRepository {
+  static const _account = Account(
+    id: '1',
+    displayName: 'Test',
+    email: 'test@example.com',
+  );
+
+  @override
+  Stream<List<Account>> observeAccounts() => Stream.value([_account]);
+
+  @override
+  Future<Account?> getAccount(String id) async => _account;
+
+  @override
+  Future<String> getPassword(String accountId) => Future.error(
+        MissingPluginException(
+          'No implementation found for method read on channel '
+          'plugins.it.nomads.com/flutter_secure_storage',
+        ),
+      );
+
+  @override
+  Future<void> addAccount(Account account, String password) async {}
+
+  @override
+  Future<void> updateAccount(Account account, {String? password}) async {}
+
+  @override
+  Future<void> removeAccount(String id) async {}
+}

test/widget/about_screen_test.dart

@@ -151,6 +151,10 @@ void main() {
     expect(clipboardText, contains('Dark Mode'));
     expect(clipboardText, contains('IMAP Accounts'));
     expect(clipboardText, contains('JMAP Accounts'));
+    expect(
+      clipboardText,
+      contains('[sharedinbox.de](https://sharedinbox.de)'),
+    );
   });
 
   testWidgets('AboutScreen create-issue button opens Codeberg URL', (

test/widget/account_export_screen_test.dart

@@ -23,7 +23,7 @@ void main() {
       expect(find.byKey(const Key('scanEncryptedButton')), findsOneWidget);
     });
 
-    testWidgets('shows 20-minute expiry hint', (tester) async {
+    testWidgets('shows expiry countdown hint', (tester) async {
       await tester.pumpWidget(
         buildApp(
           initialLocation: '/accounts/receive',
@@ -32,8 +32,106 @@ void main() {
       );
       await tester.pumpAndSettle();
 
-      expect(find.textContaining('20 minutes'), findsOneWidget);
+      expect(find.textContaining('expires in'), findsOneWidget);
     });
+
+    testWidgets(
+      'step 2 button shows text-input fallback on platforms without camera',
+      (tester) async {
+        await tester.pumpWidget(
+          buildApp(
+            initialLocation: '/accounts/receive',
+            overrides: baseOverrides(),
+          ),
+        );
+        await tester.pumpAndSettle();
+
+        await tester.tap(find.byKey(const Key('scanEncryptedButton')));
+        await tester.pumpAndSettle();
+
+        // On Linux (desktop, no camera) the text fallback field must appear.
+        expect(find.byKey(const Key('encryptedCodeField')), findsOneWidget);
+      },
+    );
+
+    testWidgets(
+      'step 2 — valid encrypted QR imports account via text fallback',
+      (tester) async {
+        // Pre-generate a key pair so we can encrypt a QR code with the same
+        // material the screen will use for decryption.
+        final material = await ShareEncryptionService.generateKeyPair();
+        final repo = FakeShareKeyRepository(material: material);
+
+        const account = Account(
+          id: 'src-1',
+          displayName: 'Alice',
+          email: 'alice@example.com',
+          imapHost: 'imap.example.com',
+          smtpHost: 'smtp.example.com',
+        );
+
+        final encryptedQr = await ShareEncryptionService.encryptAccounts(
+          recipientKeyId: material.keyId,
+          recipientPublicKeyBytes: material.publicKeyBytes,
+          accounts: [
+            AccountPayload(
+              accountJson: account.toJson(),
+              password: 'secret',
+            ),
+          ],
+        );
+
+        await tester.pumpWidget(
+          buildApp(
+            initialLocation: '/accounts/receive',
+            overrides: baseOverrides(shareKeyRepository: repo),
+          ),
+        );
+        await tester.pumpAndSettle(); // key generation completes
+
+        await tester.tap(find.byKey(const Key('scanEncryptedButton')));
+        await tester.pumpAndSettle();
+
+        await tester.enterText(
+          find.byKey(const Key('encryptedCodeField')),
+          encryptedQr,
+        );
+        await tester.tap(find.text('Import'));
+        await tester.pumpAndSettle();
+
+        expect(
+          find.text('Imported 1 account successfully.'),
+          findsOneWidget,
+        );
+      },
+    );
+
+    testWidgets(
+      'step 2 — invalid encrypted QR shows error and returns to pub-key step',
+      (tester) async {
+        await tester.pumpWidget(
+          buildApp(
+            initialLocation: '/accounts/receive',
+            overrides: baseOverrides(),
+          ),
+        );
+        await tester.pumpAndSettle();
+
+        await tester.tap(find.byKey(const Key('scanEncryptedButton')));
+        await tester.pumpAndSettle();
+
+        await tester.enterText(
+          find.byKey(const Key('encryptedCodeField')),
+          'not-a-valid-qr-code',
+        );
+        await tester.tap(find.text('Import'));
+        await tester.pumpAndSettle();
+
+        // Screen returns to the pub-key step with an error message visible.
+        expect(find.byKey(const Key('pubKeyQrCode')), findsOneWidget);
+        expect(find.textContaining('Import failed:'), findsWidgets);
+      },
+    );
   });
 
   group('AccountSendScreen', () {

test/widget/crash_screen_test.dart

@@ -116,13 +116,89 @@ void main() {
 
       expect(clipboardText, isNotNull);
       expect(clipboardText, contains('App Version: 1.0.0+42'));
+      expect(clipboardText, contains('Build Mode:'));
       expect(clipboardText, contains('Platform:'));
+      expect(clipboardText, contains('Dart:'));
+      expect(clipboardText, contains('Timestamp:'));
       expect(clipboardText, contains('TestException: clipboard test'));
       // GIT_HASH is empty in test builds — no Git Commit line expected
       expect(clipboardText, isNot(contains('Git Commit:')));
     },
   );
 
+  testWidgets(
+    'CrashScreen shows git hash as clickable link above stacktrace',
+    (tester) async {
+      tester.view.physicalSize = const Size(800, 1200);
+      tester.view.devicePixelRatio = 1.0;
+      addTearDown(() => tester.view.resetPhysicalSize());
+
+      final mock = MockUrlLauncher();
+      UrlLauncherPlatform.instance = mock;
+
+      const exception = 'TestException: git hash test';
+      final stackTrace = StackTrace.current;
+      const testHash = 'abc1234';
+
+      await tester.pumpWidget(
+        CrashScreen(
+          exception: exception,
+          stackTrace: stackTrace,
+          gitHash: testHash,
+        ),
+      );
+
+      // Git hash link should be present
+      final gitLinkFinder = find.textContaining('Git Commit: abc1234');
+      expect(gitLinkFinder, findsOneWidget);
+
+      // Link must appear above the stack trace
+      final stackTraceFinder = find.text('Stack Trace:');
+      expect(
+        tester.getTopLeft(gitLinkFinder).dy,
+        lessThan(tester.getTopLeft(stackTraceFinder).dy),
+      );
+
+      // Tapping the link should open the Codeberg commit URL
+      await tester.tap(gitLinkFinder);
+      await tester.pumpAndSettle();
+
+      expect(
+        mock.launchedUrl,
+        equals('https://codeberg.org/guettli/sharedinbox/commit/abc1234'),
+      );
+    },
+  );
+
+  testWidgets(
+    'CrashScreen shows version, build mode, and platform in the UI',
+    (tester) async {
+      tester.view.physicalSize = const Size(800, 1200);
+      tester.view.devicePixelRatio = 1.0;
+      addTearDown(() => tester.view.resetPhysicalSize());
+
+      const exception = 'TestException: info row test';
+      final stackTrace = StackTrace.current;
+
+      await tester.pumpWidget(
+        MaterialApp(
+          home: CrashScreen(exception: exception, stackTrace: stackTrace),
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      // Info row shows app version (from mock), build mode, and platform OS.
+      expect(find.textContaining('1.0.0+42'), findsWidgets);
+      // In test builds kDebugMode is true.
+      expect(find.textContaining('debug'), findsOneWidget);
+      // Platform OS is always present (linux in CI, android/ios on device).
+      expect(
+        find.textContaining(RegExp(r'linux|android|ios|windows|macos')),
+        findsWidgets,
+      );
+    },
+  );
+
   testWidgets(
     'CrashScreen used as root widget — buttons work without ScaffoldMessenger crash',
     (tester) async {

test/widget/helpers.dart

@@ -79,11 +79,13 @@ class FakeAccountRepository implements AccountRepository {
 }
 
 class FakeShareKeyRepository implements ShareKeyRepository {
+  FakeShareKeyRepository({ShareKeyMaterial? material}) : _material = material;
+
   ShareKeyMaterial? _material;
 
   @override
   Future<ShareKeyMaterial> createKeyPair() async {
-    _material = await ShareEncryptionService.generateKeyPair();
+    _material ??= await ShareEncryptionService.generateKeyPair();
     return _material!;
   }
 
@@ -511,6 +513,7 @@ List<Override> baseOverrides({
   List<Mailbox>? mailboxes,
   DiscoveryResult? discovery,
   Exception? connectionError,
+  ShareKeyRepository? shareKeyRepository,
 }) =>
     [
       accountRepositoryProvider
@@ -525,7 +528,9 @@ List<Override> baseOverrides({
       connectionTestServiceProvider.overrideWithValue(
         FakeConnectionTestService(error: connectionError),
       ),
-      shareKeyRepositoryProvider.overrideWithValue(FakeShareKeyRepository()),
+      shareKeyRepositoryProvider.overrideWithValue(
+        shareKeyRepository ?? FakeShareKeyRepository(),
+      ),
     ];
 
 // ---------------------------------------------------------------------------