feat: show email preview snippet in thread list tiles

Added preview field to EmailThread (from latest email's preview via
_groupIntoThreads). Thread tiles now show subject + one-line body snippet.

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

NEXT.md

@@ -1,19 +0,0 @@
-# Next
-
-## Introduction
-
-Do one thing, ask if unsure first!
-
-Then implement.
-
-Then run `task check`.
-
-Then move task to DONE.md
-
-Check if all files are staged.
-
-Git repo should not contain unknown files.
-
-Then commit.
-
-## Tasks

done.md

@@ -2,10 +2,16 @@
 
 This file contains tasks which got implemented.
 
-Tasks get moved from NEXT.md to DONE.md
+Tasks get moved from next.md to done.md
 
 ## Tasks
 
+## Show email preview snippet in list
+
+Added `preview` field to `EmailThread` (populated from the latest email in
+`_groupIntoThreads`). Thread tiles now show subject + a one-line preview
+snippet in the subtitle.
+
 ## Extract TryConnectionButton widget shared by account screens
 
 Extracted `lib/ui/widgets/try_connection_button.dart` — a stateless widget

lib/core/models/email.dart

@@ -52,6 +52,7 @@ class EmailThread {
   final bool hasUnread;
   final bool isFlagged;
   final String latestEmailId;
+  final String? preview;
   final String accountId;
   final String mailboxPath;
 
@@ -67,6 +68,7 @@ class EmailThread {
     required this.hasUnread,
     required this.isFlagged,
     required this.latestEmailId,
+    this.preview,
     required this.emailIds,
     required this.accountId,
     required this.mailboxPath,

lib/data/repositories/email_repository_impl.dart

@@ -110,6 +110,7 @@ class EmailRepositoryImpl implements EmailRepository {
         hasUnread: threadEmails.any((e) => !e.isSeen),
         isFlagged: threadEmails.any((e) => e.isFlagged),
         latestEmailId: latest.id,
+        preview: latest.preview,
         emailIds: threadEmails.map((e) => e.id).toList(),
         accountId: latest.accountId,
         mailboxPath: latest.mailboxPath,

lib/ui/screens/email_list_screen.dart

@@ -379,10 +379,25 @@ class _EmailListScreenState extends ConsumerState<EmailListScreen> {
                 ),
             ],
           ),
-          subtitle: Text(
-            t.subject ?? '(no subject)',
-            maxLines: 1,
-            overflow: TextOverflow.ellipsis,
+          subtitle: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                t.subject ?? '(no subject)',
+                maxLines: 1,
+                overflow: TextOverflow.ellipsis,
+                style: t.hasUnread
+                    ? const TextStyle(fontWeight: FontWeight.bold)
+                    : null,
+              ),
+              if (t.preview != null && t.preview!.isNotEmpty)
+                Text(
+                  t.preview!,
+                  maxLines: 1,
+                  overflow: TextOverflow.ellipsis,
+                  style: Theme.of(ctx).textTheme.bodySmall,
+                ),
+            ],
           ),
           selected: isSelected,
           trailing: _selecting

next.md

@@ -0,0 +1,55 @@
+# Next
+
+## Introduction
+
+Do one thing, ask if unsure first!
+
+Then implement.
+
+Then run `task check`.
+
+Then move task to done.md
+
+Check if all files are staged.
+
+Git repo should not contain unknown files.
+
+Then commit.
+
+## Tasks
+
+## Pull-to-refresh on email list
+
+`EmailListScreen` has a manual sync icon button but no swipe-to-refresh gesture.
+Wrap the `StreamBuilder` result body in a `RefreshIndicator` that calls the
+same sync trigger as the icon button.
+
+File: `lib/ui/screens/email_list_screen.dart`
+
+## Mark as unread button in email detail
+
+`EmailRepository.setFlag(emailId, seen: false)` already exists. Add a
+"Mark as unread" icon button (or overflow menu item) in `EmailDetailScreen`
+that calls `setFlag(seen: false)` then pops the screen so the message
+reappears as unread in the list.
+
+File: `lib/ui/screens/email_detail_screen.dart`
+
+## Quote original message in reply, and add Forward button
+
+When replying, `prefillBody` is never set so compose opens with an empty body.
+Set `prefillBody` to the original message formatted as a plain-text quote:
+
+```text
+\n\n— On <date>, <from> wrote:\n> line1\n> line2…
+```
+
+For Forward, add a third icon button (Icons.forward) next to reply/reply-all:
+
+- subject: `Fwd: <original subject>`
+- To/Cc: empty (user fills in)
+- body: same quoted original text
+
+The body snapshot is already available in `_buildBody()` context.
+
+File: `lib/ui/screens/email_detail_screen.dart`