feat(cli): speech-to-text v1 — intents

[claude]

Summary

• Add CLI recipe for speech-to-text v1 intents feature
• Demonstrates intent recognition using curl and Deepgram API
• Includes working example, test, and documentation

Test plan

• Example runs successfully with valid API key
• Test verifies non-empty output and exit code 0
• README explains feature, parameters, and usage

Generated with Claude Code

[github-actions]

✅ CLI Recipe Tests

── recipes/cli/speech-to-text/v1/intents ──
PASS
" (confidence: null)"
{
  "status": "success",
✓ PASSED