chore(tests): remove accidentally-committed fix-agent transcript

Run 26400063280 / fix-agent attempt 1 (3ed8eee) inadvertently
pushed transcripts/fix-C002-attempt1.jsonl. Root cause was a recorder.py
bug where cwd.parent resolved to cwd when cwd=Path("."), placing the
transcript inside the SDK working tree. Fixed in gdc-nas commit
96280b1a2d.

Author: tychtjan