fix openenv multi-mode entry point

pyproject.toml

@@ -17,4 +17,4 @@ dependencies = [
 ]
 
 [project.scripts]
-server = "sql_env.server:app"
+server = "server.app:main"

server/app.py

@@ -1 +1,10 @@
+import uvicorn
 from sql_env.server import app
+
+
+def main():
+    uvicorn.run(app, host="0.0.0.0", port=7860)
+
+
+if __name__ == '__main__':
+    main()