fixed issue

backend/app.py

@@ -298,10 +298,7 @@ async def reload_data():
     return {"status": "reloaded"}
 
 
-# Mount static files after all routes are defined
-@app.on_event("startup")
-async def mount_static():
-    """Mount static file serving."""
+# Mount static files directly (must be after all routes to avoid catching API calls)
 if settings.frontend_dir.exists():
     app.mount("/static", StaticFiles(directory=settings.frontend_dir), name="static")