Update app.py

app.py

@@ -170,7 +170,7 @@ async def get_user_by_username(username: str) -> Optional[dict]:
 FCM_SERVER_KEY = os.getenv("FCM_SERVER_KEY")
 
 def send_push(token: str, title: str, body: str, platform: str = "web"):
-    if platform="app":
+    if platform=="app":
         message = firebase_admin.messaging.Message(
         notification=firebase_admin.messaging.Notification(
         title=title,