add resilient self-plan generation with provider fallback

apps/mobile/src/api/recommendations.ts

@@ -18,6 +18,16 @@ export interface Recommendation {
   updatedAt: string;
 }
 
+interface RecommendationMeta {
+  usedFallbackPlan?: boolean;
+}
+
+interface RecommendationApiEnvelope {
+  success?: boolean;
+  data?: Recommendation;
+  meta?: RecommendationMeta;
+}
+
 export interface GenerateRecommendationRequest {
   userId: string;
   useExternalModel?: boolean;
@@ -117,7 +127,7 @@ export async function generateSelfRecommendation(
   token: string | null,
 ): Promise<Recommendation> {
   try {
-    const response = await apiClient.post(
+    const response = await apiClient.post<RecommendationApiEnvelope>(
       `${API_ENDPOINTS.RECOMMENDATIONS}/generate-self`,
       {},
       withAuth(token),

apps/mobile/src/app/(tabs)/goals.tsx

@@ -203,7 +203,7 @@ export default function GoalsScreen() {
       await Promise.all([refetchRecommendations(), refetchGoals()]);
       Alert.alert(
         "Plan Ready",
-        "Your new AI activity plan has been generated and active goals were added.",
+        "Your new activity plan is ready and active goals were added.",
       );
     } catch (error) {
       const message =