feat: store discord user ids on accounts

app/api/routers/users.py

@@ -30,6 +30,7 @@ def _user_response(user: models.User) -> dict:
         "role_id": user.role_id,
         "role_name": user.role_name,
         "agent_id": user.agent.agent_id if user.agent else None,
+        "discord_user_id": user.discord_user_id,
         "created_at": user.created_at,
     }
     return data
@@ -114,6 +115,7 @@ def create_user(
         username=user.username,
         email=user.email,
         full_name=user.full_name,
+        discord_user_id=user.discord_user_id,
         hashed_password=hashed_password,
         is_admin=False,
         is_active=True,
@@ -202,6 +204,9 @@ def update_user(
             raise HTTPException(status_code=400, detail="You cannot deactivate your own account")
         user.is_active = payload.is_active
 
+    if payload.discord_user_id is not None:
+        user.discord_user_id = payload.discord_user_id or None
+
     db.commit()
     db.refresh(user)
     return _user_response(user)