cleanup

.github/copilot-instructions.md

@@ -58,7 +58,8 @@ src/                          # Frontend
   components/                 # BottomNav, LoginCard, GoogleSignInButton, ProtectedRoute
   contexts/                   # AuthContext (Firebase Google Auth)
   lib/
-    firebase.ts               # Firebase auth config (Firestore removed)
+    firebase.ts               # Firebase auth config (Google sign-in only)
+    api.ts                    # API client for backend calls
 
 backend/                      # FastAPI backend (Port 8001)
   main.py                     # FastAPI app, CORS, routes, lifespan
@@ -90,9 +91,8 @@ backend/                      # FastAPI backend (Port 8001)
 ✅ Pydantic models for User, JournalEntry, UserSettings  
 ✅ Route structure: `/api/users/*` and `/api/entries/*`  
 ✅ CORS enabled for frontend (localhost:8000)  
-✅ Firestore database files removed (`firestoreService.ts`, `firestoreConfig.ts`)  
-✅ Firebase authentication kept (Google sign-in only)
-
+✅ Firebase Google Auth kept (Firestore completely removed)
+✅ MongoDB as single source of truth
 ### API Ready
 
 - User registration, profile updates, deletion