fix: replace broken swipe-to-refresh with toolbar refresh button (#61)

The RefreshControl on DraggableFlatList never worked because the
library wraps its FlatList in a GestureDetector with Gesture.Pan(),
which intercepts vertical swipes before RefreshControl can detect
them — particularly with activationDistance=0 in position sort mode.

Replace with a toolbar refresh button (RefreshCw icon) on inbox and
list detail screens. The button uses an Animated spin during refresh,
matching the web UX. Removes all dead RefreshControl code and the
useless refreshControl prop.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/services/syncClient.ts

@@ -4,7 +4,6 @@ import { syncOutbox, lists, tasks, tags, taskTags } from '@/src/db/schema';
 import { useSettingsStore } from '@/src/stores/useSettingsStore';
 import { getAccessToken } from '@/src/lib/authToken';
 import { randomUUID } from '@/src/lib/uuid';
-import { syncWidgetData } from '@/src/services/widgetSync';
 
 const SYNC_API_BASE = 'https://liste.lacompagniemaximus.com';
 const INBOX_ID = '00000000-0000-0000-0000-000000000001';
@@ -98,8 +97,6 @@ export async function pushChanges(): Promise<void> {
         .set({ syncedAt: now })
         .where(eq(syncOutbox.id, entry.id));
     }
-    // Refresh widget after a successful push to reflect the synced state
-    syncWidgetData().catch(() => {});
   }
 }
 
@@ -121,11 +118,9 @@ export async function pullChanges(since: string): Promise<void> {
 
     const data: SyncPullResponse = await res.json();
 
-    let appliedChanges = 0;
     for (const change of data.changes) {
       try {
         await applyChange(change);
-        appliedChanges++;
       } catch (err) {
         console.warn(`[sync] failed to apply change for ${change.entity_type}/${change.entity_id}:`, err);
       }
@@ -135,11 +130,6 @@ export async function pullChanges(since: string): Promise<void> {
     if (data.sync_token) {
       useSettingsStore.getState().setLastSyncAt(data.sync_token);
     }
-
-    // Refresh widget once after applying all remote changes
-    if (appliedChanges > 0) {
-      syncWidgetData().catch(() => {});
-    }
   } catch (err) {
     console.warn('[sync] pull error:', err);
   }