Update app.py

app.py

@@ -484,6 +484,13 @@ def calculate_token_cost(username: str, duration_ms: float) -> str:
         return json.dumps({
             "success": False,
             "error": str(e),
+            "error_type": type(e).__name__,
+            "processing_time_ms": round(processing_time * 1000, 2),
+            "timestamp": datetime.datetime.now(pytz.UTC).isoformat()
+        }, indent=2)
+
+def get_backend_health() -> str:
+    """SPEED-OPTIMIZED backend health status with hard-coded RAM"""
     logger.info(f"[BACKEND-HEALTH] Checking backend health status...")
     logger.info(f"[BACKEND-HEALTH] Current prompt cache size: {len(prompt_cache)} entries")
     logger.info(f"[BACKEND-HEALTH] Current response cache size: {len(response_cache)} entries")