docs(phase984): mesh stability UI reconnect chrome v0.8.951

Mark Phase 984 complete (47/50), update roadmap to Phase 985, and document
reconnect chrome modules, CI bundle, and release notes.

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

release_notes/RELEASE_v0.8.951.md

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+# Release v0.8.951 — Phase 984: Mesh Stability UI Reconnect Chrome Keys Extract
+
+**Date:** 2026-06-05
+**Type:** Non-breaking refactor — mesh stability UI parity hardening
+
+## Summary
+
+Phase 984 extracts mesh stability reconnect chrome field/action keys and the P2P
+badge text formatter from `app.js` into dedicated modules with identical badge
+copy on all three update paths.
+
+## New Modules
+
+### `pearcord-platform/mesh-stability-ui-reconnect-chrome-keys.js`
+
+- 3 field keys: statsPeers, hasStats, p2pBadgeText
+- 4 action keys: syncChatHeader, syncPendingBanner, syncServerRail, updateP2pBadge
+- `formatMeshStabilityP2pBadgeText()` and `buildMeshStabilityReconnectChromeSnapshot()`
+
+### `apps/pearcord/ui/mesh-stability-ui-reconnect-chrome.js`
+
+- Re-exports platform keys
+- `applyMeshStabilityP2pBadgeText()` DOM helper
+
+## Test Coverage
+
+- `smoke-mesh-stability-ui-reconnect-chrome-build.cjs` — keys registry + badge strings + app.js wire checks
+- `smoke-phase984-boot-gate.cjs` — version check (0.8.951)
+- `smoke-agentctl-mesh-stability-ui-reconnect-chrome-journey-stub.cjs` — agentctl integration stub
+- `test:mesh-stability-stats` — extended with reconnect chrome snapshot assertions
+- `test:gossip-rpc-pull-unit` — extended with reconnect chrome action key assertions
+- `test:ci-phase984` — full CI bundle
+
+## Version
+
+`0.8.950` → `0.8.951`