fix: remove MCP application-level authorization

app/main.py

@@ -4,7 +4,6 @@ from fastapi.staticfiles import StaticFiles
 from app.admin import router as admin_router
 from app.api import router as api_router
 from app.db import init_db
-from app.mcp import metadata_router as mcp_metadata_router
 from app.mcp import router as mcp_router
 from app.version import BACKEND_VERSION
 
@@ -13,7 +12,6 @@ app.mount("/static", StaticFiles(directory="app/static"), name="static")
 app.include_router(api_router)
 app.include_router(admin_router)
 app.include_router(mcp_router)
-app.include_router(mcp_metadata_router)
 
 
 @app.on_event("startup")