feat(knowledge): add service library

backend/hermes/app/main.py

@@ -13,6 +13,7 @@ from app.api.auth import router as auth_router
 from app.api.audit import router as audit_router
 from app.api.customers import router as customers_router
 from app.api.dashboard import router as dashboard_router
+from app.api.knowledge import router as knowledge_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
@@ -36,6 +37,7 @@ app.include_router(users_router)
 app.include_router(roles_router)
 app.include_router(permissions_router)
 app.include_router(customers_router)
+app.include_router(knowledge_router)
 app.include_router(dashboard_router)
 
 logger = logging.getLogger(__name__)