Replace user_id with custom_user_id in user creation requests for consistency

Author: devasheeshG

recallrai/async_client.py

@@ -89,7 +89,7 @@ async def create_user(
             TimeoutError: If the request times out.
             RecallrAIError: For other API-related errors.
         """
-        response = await self._http.post("/api/v1/users", data={"user_id": user_id, "metadata": metadata or {}})
+        response = await self._http.post("/api/v1/users", data={"custom_user_id": user_id, "metadata": metadata or {}})
         if response.status_code == 409:
             detail = response.json().get("detail", f"User with ID {user_id} already exists")
             raise UserAlreadyExistsError(message=detail, http_status=response.status_code)

recallrai/client.py

@@ -75,7 +75,7 @@ def create_user(
             TimeoutError: If the request times out.
             RecallrAIError: For other API-related errors.
         """
-        response = self._http.post("/api/v1/users", data={"user_id": user_id, "metadata": metadata or {}})
+        response = self._http.post("/api/v1/users", data={"custom_user_id": user_id, "metadata": metadata or {}})
         if response.status_code == 409:
             detail = response.json().get("detail", f"User with ID {user_id} already exists")
             raise UserAlreadyExistsError(message=detail, http_status=response.status_code)