fix(tests): drop unused sys/types imports in #7565 codex commentary test

The test file imports `sys` and `types` but never references either.
Ruff F401 flags them. No test or runtime behavior change.

- Remove the 2 unused import lines
- 11 tests still pass
- No new ruff violations

tests/test_issue7565_codex_commentary_media.py

@@ -12,9 +12,6 @@ snapshotted at settle time.
 """
 from __future__ import annotations
 
-import sys
-import types
-
 from api.media_snapshots import codex_commentary_text