feat(integration): resolve quiz proxy auth forwarding and groq model configuration

ai-ml/quiz_generator/app/config.py

@@ -9,13 +9,7 @@
 
 GROQ_API_KEY = os.getenv("GROQ_API_KEY", "")
 
-GROQ_MODEL = "openai/gpt-oss-120b"
-# NOTE: llama-3.3-70b-versatile has been deprecated by Groq and no
-# longer resolves (404 model_not_found). openai/gpt-oss-120b is
-# Groq's current recommended general-purpose/reasoning replacement
-# as of this writing. This was silently breaking all live quiz
-# generation (MCQ, true/false, fill-blank, short-answer all share
-# this config) until fixed.
+GROQ_MODEL = os.getenv("GROQ_MODEL", "llama-3.1-8b-instant")
 
 
 # ==========================================

web/backend/routes/quiz.py

@@ -5,6 +5,7 @@
 import logging
 from datetime import datetime, timezone
 from typing import Optional, Dict, Any, List
+from auth_utils import get_current_user_email, create_access_token
 
 import httpx
 from fastapi import APIRouter, HTTPException, Request, Depends, Header
@@ -38,18 +39,24 @@ async def generate_quiz_proxy(
     and filters out answers so the frontend receives ONLY questions without answers.
     """
     # Extract user ID if available from auth header or request
+   # Extract user ID if available from auth header or request
     auth_header = req.headers.get("Authorization", "")
     user_id = "anonymous"
     if auth_header.startswith("Bearer "):
         try:
             from auth_utils import decode_access_token
             token = auth_header.split(" ")[1]
-            payload = decode_access_token(token)
-            if payload and "sub" in payload:
-                user_id = payload["sub"]
+            payload_token = decode_access_token(token)
+            if payload_token and "sub" in payload_token:
+                user_id = payload_token["sub"]
         except Exception:
             pass
 
+    # Ensure internal token is attached for the AI Quiz Generator service
+    forward_headers = {
+        "Authorization": f"Bearer {create_access_token(user_id)}"
+    }
+
     target_url = f"{QUIZ_SERVICE_URL.rstrip('/')}/generate-quiz"
     payload = {
         "topic": body.topic.strip(),
@@ -66,7 +73,7 @@ async def generate_quiz_proxy(
         )
 
         async with httpx.AsyncClient(timeout=timeout) as client:
-            response = await client.post(target_url, json=payload)
+            response = await client.post(target_url, json=payload, headers=forward_headers)
 
         if response.status_code == 200:
             data = response.json()