fix: prevent double-import of app.py by registering app namespace in sys.modules

src/app.py

@@ -6,11 +6,16 @@ Run directly:  python src/app.py
 """
 
 import os
+import sys
 import json
 import hmac
 from flask import Flask, request, make_response, send_from_directory
 from flask_sock import Sock
 
+# Prevent double-import of app when run directly as __main__
+if __name__ == "__main__":
+    sys.modules["app"] = sys.modules["__main__"]
+
 
 def _load_env() -> None:
     env_path = os.path.join(os.path.expanduser("~"), ".agentmemory", ".env")