feat(watch): add workout deletion sync and optimize delete operations

src/db/operations.ts

@@ -253,7 +253,9 @@ export async function deleteSession(sessionId: string) {
 
 export async function deleteSessionAndSync(sessionId: string) {
   await deleteSession(sessionId);
-  await WatchConnectivity.sendWorkoutDeleted(sessionId);
+  WatchConnectivity.sendWorkoutDeleted(sessionId).catch((err) =>
+    console.warn("[ops] sync failed:", err)
+  );
 }
 
 export async function deleteWorkout(id: string) {
@@ -272,7 +274,9 @@ export async function deleteWorkout(id: string) {
 
 export async function deleteWorkoutAndSync(id: string) {
   await deleteWorkout(id);
-  await WatchConnectivity.sendWorkoutDeleted(id);
+  WatchConnectivity.sendWorkoutDeleted(id).catch((err) =>
+    console.warn("[ops] sync failed:", err)
+  );
 }
 
 // ─── Stats ───────────────────────────────────────────────────

src/features/history/screens/HistoryScreen.tsx

@@ -52,7 +52,7 @@ export function HistoryScreen() {
         style: "destructive",
         onPress: async () => {
           await deleteSessionAndSync(id);
-          await loadSessions();
+          setSessions((prev) => prev.filter((s) => s.id !== id));
         },
       },
     ]);

src/features/workout-builder/screens/WorkoutListScreen.tsx

@@ -64,7 +64,7 @@ export function WorkoutListScreen() {
         style: "destructive",
         onPress: async () => {
           await deleteWorkoutAndSync(id);
-          await loadWorkouts();
+          setWorkouts((prev) => prev.filter((w) => w.id !== id));
         },
       },
     ]);

src/modules/watch-connectivity/index.ts

@@ -9,6 +9,7 @@ WatchConnectivity = requireOptionalNativeModule("WatchConnectivity") ?? {
   isReachable: async () => false,
   sendWorkoutPlan: async () => ({ error: "WatchConnectivity native module not available" }),
   sendWorkoutCompletion: async () => ({ error: "WatchConnectivity native module not available" }),
+  sendWorkoutDeleted: async () => ({ error: "WatchConnectivity native module not available" }),
   pollEvents: async () => [],
   getApplicationContext: async () => null,
   updateApplicationContext: async () => {},