feat(cli): speech-to-text v1 — streaming-file

[claude]

Adds the streaming-file recipe for speech-to-text v1 (cli).

Closes part of #201

[github-actions]

✅ CLI Recipe Tests

── recipes/cli/speech-to-text/v1/streaming-file ──
PASS
/home/runner/work/recipes/recipes/recipes/cli/speech-to-text/v1/streaming-file/example.sh: line 13: ffmpeg: command not found
✓ Streaming stdin · nova-3 · send EOF (Ctrl+D) to finish
✓ PASSED