Fix: Add models.py and update server

server/app.py

@@ -1,12 +1,10 @@
-from env.server import app as _app
+from env.server import app
 import uvicorn
 
 
 def main():
-    uvicorn.run(_app, host="0.0.0.0", port=7860)
+    uvicorn.run(app, host="0.0.0.0", port=7860)
 
 
 if __name__ == "__main__":
     main()
-
-__all__ = ["app", "main"]