refactor: align backend with company-site-member schema and system-level RBAC groups

backend/app/main.py

@@ -2,10 +2,10 @@ from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
 from app.api.admin import router as admin_router
-from app.api.admin_entities import router as admin_entities_router
+from app.api.admin_catalog import router as admin_catalog_router
 from app.api.auth import router as auth_router
+from app.api.internal_catalog import router as internal_catalog_router
 from app.api.internal import router as internal_router
-from app.api.internal_entities import router as internal_entities_router
 from app.api.me import router as me_router
 from app.core.config import get_settings
 
@@ -27,8 +27,8 @@ def healthz() -> dict[str, str]:
 
 
 app.include_router(internal_router)
-app.include_router(internal_entities_router)
+app.include_router(internal_catalog_router)
 app.include_router(admin_router)
-app.include_router(admin_entities_router)
+app.include_router(admin_catalog_router)
 app.include_router(me_router)
 app.include_router(auth_router)