init: new structure + fix lint errors

cpv3/modules/captions/schemas.py

@@ -0,0 +1,14 @@
+from __future__ import annotations
+
+from cpv3.common.schemas import Schema
+from cpv3.modules.transcription.schemas import Document
+
+
+class CaptionsRequest(Schema):
+    folder: str
+    video_s3_path: str
+    transcription: Document
+
+
+class CaptionsResponse(Schema):
+    result: str