feat(submissions): base submissions frontend + api

polylan_submitter/submissions/schemas.py

@@ -0,0 +1,20 @@
+from typing import Optional
+from ninja import Schema
+
+
+class SubmissionFileOut(Schema):
+    id: str
+    original_filename: str
+    file_size: int
+    content_type: str
+    file_url: Optional[str] = None
+    ocr_status: str
+
+
+class SubmissionOut(Schema):
+    id: str
+    game_id: Optional[int] = None
+    notes: Optional[str] = None
+    files: list[SubmissionFileOut] = []
+    created_at: str
+    updated_at: str