refactor: Remove internal models module in favor of generated models

ActorJob and ActorJobResponse schemas were added to the OpenAPI spec
(apify/apify-docs#XXXX), so they are now generated into _models.py.
This removes the manually maintained _internal_models.py module.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vdusek

src/apify_client/_internal_models.py

@@ -1,6 +1,6 @@
 # generated by datamodel-codegen:
-#   filename:  https://docs.apify.com/api/openapi.json
-#   timestamp: 2026-02-24T08:34:43+00:00
+#   filename:  openapi.json
+#   timestamp: 2026-02-25T14:54:37+00:00
 
 from __future__ import annotations
 
@@ -2884,3 +2884,24 @@ class UpdateLimitsRequest(BaseModel):
     Apify securely stores your ten most recent Actor runs indefinitely, ensuring they are always accessible. Unnamed storages and other Actor runs are automatically deleted after the retention period. If you're subscribed, you can change it to keep data for longer or to limit your usage. [Lear more](https://docs.apify.com/platform/storage/usage#data-retention).
 
     """
+
+
+class ActorJob(BaseModel):
+    """Minimal model for an Actor job (run or build) with status. Used for validation during polling operations."""
+
+    model_config = ConfigDict(
+        extra='allow',
+    )
+    status: ActorJobStatus
+    """
+    Current status of the Actor job.
+    """
+
+
+class ActorJobResponse(BaseModel):
+    """Response wrapper for an Actor job (run or build). Used for minimal validation during polling operations."""
+
+    model_config = ConfigDict(
+        extra='allow',
+    )
+    data: ActorJob

src/apify_client/_models.py

@@ -8,8 +8,8 @@
 
 from apify_client._consts import DEFAULT_WAIT_FOR_FINISH, DEFAULT_WAIT_WHEN_JOB_NOT_EXIST, TERMINAL_STATUSES
 from apify_client._docs import docs_group
-from apify_client._internal_models import ActorJobResponse
 from apify_client._logging import WithLogDetailsClient
+from apify_client._models import ActorJobResponse
 from apify_client._utils import catch_not_found_or_throw, response_to_dict, to_safe_id, to_seconds
 from apify_client.errors import ApifyApiError