fix(voice): discard continuations from closed conversations

docs/CURRENT-STATE.md

@@ -6,7 +6,8 @@ controller exports and session/backend contracts remain available. Tool protocol
 response wording, push-to-talk timing, model preferences and Radio confirmation
 order are preserved. Stopped connections, stale offers and delayed captures cannot affect a
 replacement session; audio meters release failed initialization and reject revoked
-frames. See [voice ownership](VOICE-OWNERSHIP.md).
+frames. Delayed action results and post-capture continuations cannot resume a
+stopped conversation or send output into a replacement. See [voice ownership](VOICE-OWNERSHIP.md).
 
 The application shell composes focused state owners for navigation, destination
 lookup/orbit, Cockpit, visual settings, panel layout, aircraft display and layer

docs/VOICE-OWNERSHIP.md

@@ -25,6 +25,8 @@ stops audio analysis, releases media and clears conversation/input state. Full
 removal also detaches UI, keyboard, annotation and Radio observers. Radio takeover
 retains confirmed playback through that same shutdown path. A late offer, peer callback,
 viewport capture or cancelled meter frame cannot enter a replacement session.
+Action and post-capture continuations retain their conversation identity before
+publishing output, queueing a response or changing status.
 
 Behavioral invariants remain in force: a 500 ms Space hold claims push-to-talk;
 short control taps and text entry remain native; a click-started session stays