feat(rbac): add roles and permissions

backend/hermes/app/main.py

@@ -9,8 +9,12 @@ from starlette import status
 from starlette.requests import Request
 
 from app.api.auth import router as auth_router
+from app.api.permissions import router as permissions_router
+from app.api.roles import router as roles_router
 from app.api.users import router as users_router
+from app.db.database import SessionLocal
 from app.db.health import check_database
+from app.rbac.seed import seed_rbac
 
 app = FastAPI(
     title="Hermes API",
@@ -20,10 +24,21 @@ app = FastAPI(
 
 app.include_router(auth_router)
 app.include_router(users_router)
+app.include_router(roles_router)
+app.include_router(permissions_router)
 
 logger = logging.getLogger(__name__)
 
 
+@app.on_event("startup")
+def startup_seed_rbac():
+    db = SessionLocal()
+    try:
+        seed_rbac(db)
+    finally:
+        db.close()
+
+
 @app.exception_handler(HTTPException)
 async def http_exception_handler(request: Request, exc: HTTPException):
     logger.warning(