Fix: Reverted generator to llama-3.3-70b-versatile for consistency (Phase 9)

backend/routers/generator.py

@@ -81,8 +81,8 @@ async def generate_project(
 
         client = groq.AsyncGroq(api_key=api_key)
         
-        # Use llama3-70b-8192 as a more stable fallback/default
-        model_name = provider_config.get("default_model") or "llama3-70b-8192"
+        # Use llama-3.3-70b-versatile to match GroqAgent.py
+        model_name = provider_config.get("default_model") or "llama-3.3-70b-versatile"
         logger.info("Calling Groq with model: %s (Key: %s...)", model_name, api_key[:8] if api_key else "None")
 
         response = await client.chat.completions.create(
@@ -93,7 +93,6 @@ async def generate_project(
             ],
             temperature=0.3,
             max_tokens=2048
-            # response_format={"type": "json_object"} # Disabled for stability testing
         )
         
         response_text = response.choices[0].message.content
@@ -105,4 +104,6 @@ async def generate_project(
         logger.exception("Project generation failed")
         error_type = type(e).__name__
         error_msg = str(e)
+        if "401" in error_msg:
+            error_msg = "Invalid API Key - Please check your Groq Dashboard and .env"
         raise HTTPException(status_code=500, detail=f"AI Error ({error_type}): {error_msg}")