fix(calls): the call-bar output menu uses the call frame's devices (#310)

deviceIds are hashed per frame/origin, so the ids the menu got from the
chat page's enumerateDevices() were unknown inside the call iframe: the
fork fell back to the default output while the menu showed a tick on
the chosen device. Handle io.lotus.audio_output_state (also silencing
the fork's "host did not ack" log) and build the menu from the fork's
list and effective selection; older forks fall back to the old list.

Fixes #310

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/plugins/call/CallEmbed.ts

@@ -439,6 +439,12 @@ export class CallEmbed {
         this.control.onControlsState((evt.detail as { data?: unknown } | undefined)?.data);
       }),
     );
+    // [Gitea #310] The fork's own output list + selection (frame-valid ids).
+    this.disposables.push(
+      this.listenAction('io.lotus.audio_output_state', (evt) => {
+        this.control.onAudioOutputState((evt.detail as { data?: unknown } | undefined)?.data);
+      }),
+    );
     // [Gitea #43] PTT / deafen keys pressed while focus is inside the frame.
     this.disposables.push(
       this.listenAction('io.lotus.hotkey', (evt) => {