Shaheen Gandhi 8169c9031b Add subscribeCallEvents command for opt-in call event notifications
Call events are no longer subscribed by default. JSON-RPC clients must
explicitly call subscribeCallEvents to receive callEvent notifications
and enable incoming call handling. This avoids sending unwanted call
events to clients that don't use voice calling.

Also adds unsubscribeCallEvents for cleanup, idempotent subscription
guard, and updates CALL_TUNNEL.md to document the subscription step.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-18 16:28:37 -07:00
..