feat: pull-to-refresh on email list screen

Wrapped the stream body in RefreshIndicator calling syncEmails.
Empty-state is now a scrollable ListView so the pull gesture triggers
even when the folder contains no messages.

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

done.md

@@ -6,6 +6,12 @@ Tasks get moved from next.md to done.md
 
 ## Tasks
 
+## Pull-to-refresh on email list
+
+Wrapped `_buildStreamBody` in a `RefreshIndicator` that calls `syncEmails`.
+The empty-state is now a scrollable `ListView` so the pull gesture works even
+when the folder has no messages.
+
 ## Show email preview snippet in list
 
 Added `preview` field to `EmailThread` (populated from the latest email in

lib/ui/screens/email_list_screen.dart

@@ -230,19 +230,30 @@ class _EmailListScreenState extends ConsumerState<EmailListScreen> {
   }
 
   Widget _buildStreamBody(EmailRepository emailRepo) {
-    return StreamBuilder<List<EmailThread>>(
-      stream: emailRepo.observeThreads(widget.accountId, widget.mailboxPath),
-      builder: (ctx, snap) {
-        if (!snap.hasData) {
-          return const Center(child: CircularProgressIndicator());
-        }
-        final threads = snap.data!;
-        _currentThreads = threads;
-        if (threads.isEmpty) {
-          return const Center(child: Text('No emails'));
-        }
-        return _buildThreadList(threads);
-      },
+    return RefreshIndicator(
+      onRefresh: () =>
+          emailRepo.syncEmails(widget.accountId, widget.mailboxPath),
+      child: StreamBuilder<List<EmailThread>>(
+        stream: emailRepo.observeThreads(widget.accountId, widget.mailboxPath),
+        builder: (ctx, snap) {
+          if (!snap.hasData) {
+            return const Center(child: CircularProgressIndicator());
+          }
+          final threads = snap.data!;
+          _currentThreads = threads;
+          if (threads.isEmpty) {
+            return ListView(
+              children: const [
+                SizedBox(
+                  height: 300,
+                  child: Center(child: Text('No emails')),
+                ),
+              ],
+            );
+          }
+          return _buildThreadList(threads);
+        },
+      ),
     );
   }
 

next.md

@@ -18,14 +18,6 @@ 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