Phase 1011: guild voice state refresh predicate docs (v0.8.978).

Document mesh stability UI guild voice state light-poll refresh extract,
test:ci-phase1011 bundle, and roadmap Phase 1011 completion.

Co-authored-by: Cursor <[email protected]>

release_notes/RELEASE_v0.8.978.md

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+# Release v0.8.978 — Phase 1011: Mesh Stability UI Guild Voice State Light-Poll Refresh
+
+**Date:** 2026-06-05
+**Type:** Non-breaking refactor — mesh stability UI chrome refresh track
+
+## Summary
+
+Phase 1011 extracts `guildVoiceStateNeedsRefresh` from `app.js` into dedicated
+platform + UI modules. Voice bar, stage bar, channel list, and voice member
+panel chrome refresh during light state polls is unchanged; quad voice hash
+continues to import `hashVoiceStateForView` from `member-voice-ui.js`.
+
+## New Modules
+
+### `pearcord-platform/mesh-stability-ui-guild-voice-state-refresh-keys.js`
+
+- 2 field keys + `evalGuildVoiceStateNeedsRefresh()` + snapshot builder
+
+### `apps/pearcord/ui/mesh-stability-ui-guild-voice-state-refresh.js`
+
+- `guildVoiceStateNeedsRefresh()` wired via `hashVoiceStateForView` from member-voice-ui
+
+## Test Coverage
+
+- `smoke-mesh-stability-ui-guild-voice-state-refresh-build.cjs` — keys + eval + app.js wire
+- `smoke-phase1011-boot-gate.cjs` — version check (0.8.978)
+- `smoke-agentctl-mesh-stability-ui-guild-voice-state-refresh-journey-stub.cjs` — agentctl stub
+- `test:mesh-stability-stats` / `test:gossip-rpc-pull-unit` — extended with voice state keys
+- `test:ci-phase1011` — full meta-bundle
+
+## Version
+
+`0.8.977` → `0.8.978`