Add heartbeat/timeout recovery for silently-dead Android recognizer sessions,
wait for and prefer the late-arriving final transcript over the interim
partial, and guard against duplicate commits when it lands after restart.
Bias native recognition toward circle member/label names via contextualStrings
so unfamiliar names aren't auto-corrected. Restrict spoken "label X" to
existing labels (exact or closest fuzzy match) instead of creating new ones,
removing the now-unused label-creation flow from AddTaskModal/VoicePanel/
parseVoiceTask.