feat(agent): migrate to native CrewAI tool loop and async resume enqueue

backend/src/v1/users/service.py

@@ -1,13 +1,16 @@
 from __future__ import annotations
 
 import re
-from typing import TYPE_CHECKING, Protocol
+from typing import TYPE_CHECKING, Protocol, cast
 from uuid import UUID
 
 from fastapi import HTTPException
 from sqlalchemy.exc import SQLAlchemyError
 
 from core.auth.models import CurrentUser
+from core.agent.infrastructure.persistence.user_context_cache import (
+    create_user_context_cache,
+)
 from core.db.base_service import BaseService
 from core.logging import get_logger
 from v1.users.repository import UserRepository
@@ -31,6 +34,10 @@ class AuthByEmailGateway(Protocol):
     async def get_user_by_email(self, email: str) -> "UserByEmailResponse": ...
 
 
+class UserContextInvalidator(Protocol):
+    async def invalidate_user(self, *, user_id: UUID) -> int: ...
+
+
 class AuthLookupAdapter:
     def __init__(self, gateway: AuthByEmailGateway) -> None:
         self._gateway = gateway
@@ -55,6 +62,7 @@ class UserService(BaseService):
     _repository: UserRepository
     _session: AsyncSession
     _auth_gateway: AuthLookupGateway | None
+    _user_context_cache: UserContextInvalidator
 
     def __init__(
         self,
@@ -62,11 +70,16 @@ class UserService(BaseService):
         session: AsyncSession,
         current_user: CurrentUser | None,
         auth_gateway: AuthLookupGateway | None = None,
+        user_context_cache: UserContextInvalidator | None = None,
     ) -> None:
         super().__init__(current_user=current_user)
         self._repository = repository
         self._session = session
         self._auth_gateway = auth_gateway
+        self._user_context_cache = cast(
+            UserContextInvalidator,
+            user_context_cache or create_user_context_cache(),
+        )
 
     async def get_me(self) -> UserResponse:
         user_id = self.require_user_id()
@@ -109,6 +122,15 @@ class UserService(BaseService):
         if user is None:
             raise HTTPException(status_code=404, detail="User not found")
 
+        try:
+            await self._user_context_cache.invalidate_user(user_id=user_id)
+        except Exception as exc:
+            logger.warning(
+                "Failed to invalidate user context cache after profile update",
+                user_id=str(user_id),
+                error=str(exc),
+            )
+
         return UserResponse(
             id=str(user.id),
             username=user.username,