Voice push-to-talk requires double /voice toggle on session start (regression from v2.1.70 fix)

Description

Push-to-talk does not activate on session start despite voiceEnabled: true in ~/.claude/settings.json. The workaround is to run /voice twice (off then on) at the beginning of every new session to re-initialize voice mode.

This appears to be a regression of the fix shipped in v2.1.70 ("Fixed push-to-talk not activating on session start when voiceEnabled: true was set in settings").

Steps to Reproduce

1. Ensure "voiceEnabled": true is set in ~/.claude/settings.json
2. Start a new Claude Code session (claude)
3. Attempt to use push-to-talk (hold Space)
4. Expected: Voice recording activates immediately
5. Actual: No speech detected / push-to-talk does not activate
6. Run /voice (disables voice)
7. Run /voice again (re-enables voice)
8. Push-to-talk now works correctly

Environment

• Claude Code version: 2.1.73
• OS: macOS (Darwin 25.3.0, Apple Silicon)
• Shell: zsh

Settings

{
  "voiceEnabled": true
}

Related Issues

• #30904 — Voice mode shows "no speech detected"
• #30293 — "No speech detected" despite working microphone
• v2.1.70 release notes mention fixing this exact scenario