feat(cli): speech-to-text v1 — search

[claude]

Adds CLI recipe for speech-to-text v1 search feature.

Closes #201

This recipe demonstrates how to search for specific words or phrases in audio using the Deepgram API with curl. The search operates at the audio level and returns confidence scores and timestamps for each match.

Features:

• Searches for multiple terms (spacewalk, space)
• Returns confidence scores and time positions
• Includes transcript snippet
• Standard CLI recipe format with test

Generated with Claude Code

[github-actions]

✅ CLI Recipe Tests

── recipes/cli/speech-to-text/v1/search ──
PASS
jq error: jq: error (at <stdin>:0): Cannot iterate over null (null)
{
  "status": "error",
✓ PASSED