Improve mobile data retrieval and state management

- Add race protection and packId normalization to swipe screen
- Add loading/error states to matchStore with couple_id filter
- Sync per-match unread counts in realtime
- Use useFocusEffect for data freshness on Home screen
- Wire RefreshControl to actual loading state on Matches

🤖 Generated with [Claude Code](https://claude.com/claude-code)

apps/mobile/app/(app)/_layout.tsx

@@ -50,21 +50,21 @@ function MessageToastPreview({
         currentUserId,
     });
 
-    if (isDecrypting) {
-        return (
-            <Text style={styles.messageToastBody} numberOfLines={1}>
-                Waiting for message...
-            </Text>
-        );
-    }
-
-    if (error) {
-        return (
-            <Text style={styles.messageToastBody} numberOfLines={1}>
-                Encrypted message
-            </Text>
-        );
-    }
+    if (isDecrypting) {
+        return (
+            <Text style={styles.messageToastBody} numberOfLines={1}>
+                Waiting for message...
+            </Text>
+        );
+    }
+
+    if (error) {
+        return (
+            <Text style={styles.messageToastBody} numberOfLines={1}>
+                Encrypted message
+            </Text>
+        );
+    }
 
     return (
         <Text style={styles.messageToastBody} numberOfLines={1}>
@@ -175,7 +175,7 @@ export default function AppLayout() {
     const router = useRouter();
     const segments = useSegments();
     const { isAuthenticated, isLoading, user, signOut } = useAuthStore();
-    const { matches, newMatchesCount, addMatch } = useMatchStore();
+    const { matches, newMatchesCount, addMatch, updateMatchUnreadCount } = useMatchStore();
     const { unreadCount, lastMessage, fetchUnreadCount, addMessage, clearLastMessage } = useMessageStore();
     const { fetchEnabledPacks } = usePacksStore();
     const { initializeRevenueCat } = useSubscriptionStore();
@@ -477,6 +477,9 @@ export default function AppLayout() {
                             delivered_at: newMessage.delivered_at || new Date().toISOString(),
                             match: { id: match.id, question: { text: questionText || "" } },
                         });
+
+                        // Sync per-match unread count for realtime updates
+                        updateMatchUnreadCount(match.id, 1);
                     }
                 }
             )
@@ -697,6 +700,12 @@ export default function AppLayout() {
                         href: null, // Hide from tab bar
                     }}
                 />
+                <Tabs.Screen
+                    name="my-answers"
+                    options={{
+                        href: null, // Hide from tab bar
+                    }}
+                />
             </Tabs>
 
             {/* Radial Menu Overlay */}