Docs: voice overlay plan and fix web mocks

docs/mac/voice-overlay.md

@@ -0,0 +1,43 @@
+## Voice Overlay Lifecycle (macOS)
+
+Audience: macOS app contributors. Goal: keep the voice overlay predictable when wake-word and push-to-talk overlap.
+
+### Current intent
+- If the overlay is already visible from wake-word and the user presses the hotkey, the hotkey session *adopts* the existing text instead of resetting it. The overlay stays up while the hotkey is held. When the user releases: send if there is trimmed text, otherwise dismiss.
+- Wake-word alone still auto-sends on silence; push-to-talk sends immediately on release.
+
+### Proposed architecture (to implement next)
+1. **VoiceSessionCoordinator (actor)**
+   - Owns exactly one `VoiceSession` at a time.
+   - API (token-based): `beginWakeCapture`, `beginPushToTalk`, `updatePartial`, `endCapture`, `cancel`, `applyCooldown`.
+   - Drops callbacks that carry stale tokens (prevents old recognizers from reopening the overlay).
+2. **VoiceSession (model)**
+   - Fields: `token`, `source` (wakeWord|pushToTalk), committed/volatile text, chime flags, timers (auto-send, idle), `overlayMode` (display|editing|sending), cooldown deadline.
+3. **Overlay binding**
+   - `VoiceSessionPublisher` (`ObservableObject`) mirrors the active session into SwiftUI.
+   - `VoiceWakeOverlayView` renders only via the publisher; it never mutates global singletons directly.
+   - Overlay user actions (`sendNow`, `dismiss`, `edit`) call back into the coordinator with the session token.
+4. **Unified send path**
+   - On `endCapture`: if trimmed text is empty → dismiss; else `performSend(session:)` (plays send chime once, forwards, dismisses).
+   - Push-to-talk: no delay; wake-word: optional delay for auto-send.
+   - Apply a short cooldown to the wake runtime after push-to-talk finishes so wake-word doesn’t immediately retrigger.
+5. **Logging**
+   - Coordinator emits `.info` logs in subsystem `com.steipete.clawdis`, categories `voicewake.overlay` and `voicewake.chime`.
+   - Key events: `session_started`, `adopted_by_push_to_talk`, `partial`, `finalized`, `send`, `dismiss`, `cancel`, `cooldown`.
+
+### Debugging checklist
+- Stream logs while reproducing a sticky overlay:
+
+  ```bash
+  sudo log stream --predicate 'subsystem == "com.steipete.clawdis" AND category CONTAINS "voicewake"' --level info --style compact
+  ```
+- Verify only one active session token; stale callbacks should be dropped by the coordinator.
+- Ensure push-to-talk release always calls `endCapture` with the active token; if text is empty, expect `dismiss` without chime or send.
+
+### Migration steps (suggested)
+1. Add `VoiceSessionCoordinator`, `VoiceSession`, and `VoiceSessionPublisher`.
+2. Refactor `VoiceWakeRuntime` to create/update/end sessions instead of touching `VoiceWakeOverlayController` directly.
+3. Refactor `VoicePushToTalk` to adopt existing sessions and call `endCapture` on release; apply runtime cooldown.
+4. Wire `VoiceWakeOverlayController` to the publisher; remove direct calls from runtime/PTT.
+5. Add integration tests for session adoption, cooldown, and empty-text dismissal.
+