init frontend

app.py

@@ -12,11 +12,16 @@ from dashboards import student_db,teacher_db
 from phase.Student_view import chatbot, lesson, quiz, game, teacherlink
 from phase.Teacher_view import classmanage,studentlist,contentmanage
 from phase.Student_view.games import profitpuzzle
-from utils import db
+from utils import db,api
 import os
 
 
-
+try:
+    ok = api.health().get("ok")
+    st.sidebar.success("Backend: UP") if ok else st.sidebar.warning("Backend: ?")
+except Exception as e:
+    st.sidebar.error(f"Backend DOWN: {e}")
+    
 # --- SESSION STATE INITIALIZATION ---
 for key, default in [("user", None), ("current_page", "Welcome"),
                      ("xp", 2450), ("streak", 7), ("current_game", None),

utils/api.py

@@ -6,6 +6,11 @@ if not BACKEND:
     raise RuntimeError("BACKEND_URL is not set in Space secrets.")
 BACKEND = BACKEND.rstrip("/")
 
+def health():
+    r = requests.get(f"{BACKEND}/health", timeout=10)
+    r.raise_for_status()
+    return r.json()
+
 def start_agent(student_id:int, lesson_id:int, level_slug:str):
     r = requests.post(f"{BACKEND}/agent/start", json={"student_id":student_id,"lesson_id":lesson_id,"level_slug":level_slug})
     r.raise_for_status()