Phase 850: sync-guild-mesh-quad-partition-heal IPC

Wire quad partition heal recovery IPC with topology emit, forced heal,
presence refresh, and guild-sync-ready partitionHeal flag.

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

README.md

@@ -2,6 +2,8 @@
 
 Pearcord desktop UI IPC dispatch and automated flow scenarios for Bare smokes. Mirrors `apps/pearcord` pear-pipe message handling.
 
+**Phase 850 (v0.8.817):** `sync-guild-mesh-quad-partition-heal` recovery IPC. Bundle: `npm run test:ci-phase850`.
+
 **Phase 849 (v0.8.816):** `sync-guild-mesh-quad-expression-soak` composite IPC. Bundle: `npm run test:ci-phase849`.
 
 **Phase 848 (v0.8.815):** `sync-guild-mesh-quad-channel-lifecycle` channel IPC. Bundle: `npm run test:ci-phase848`.

index.js

@@ -1450,6 +1450,35 @@ async function dispatchUiMessage (platform, msg, hooks = {}) {
     })
     return true
   }
+  if (t === 'sync-guild-mesh-quad-partition-heal') {
+    if (platform.mode === 'guild' && platform.guild?.guild?.id) {
+      const gid = platform.guild.guild.id
+      const peerN = platform.guild?.peers?.size ?? 0
+      platform.emit('guild-mesh-topology', {
+        guildId: gid,
+        meshPeerCount: peerN,
+        manualRecovery: true,
+        quadMesh: true
+      })
+      void platform
+        .runPartitionHealSync({
+          force: true,
+          source: 'sync-guild-mesh-quad-partition-heal'
+        })
+        .catch(() => null)
+      platform.emit('presence')
+      platform.emit('guild-sync-ready', { guildId: gid, presence: 1, partitionHeal: 1 })
+      if (typeof platform.requestGuildSyncFanout === 'function') {
+        platform.requestGuildSyncFanout()
+      }
+    }
+    pushState({
+      structural: true,
+      light: false,
+      source: 'sync-guild-mesh-quad-partition-heal'
+    })
+    return true
+  }
   if (t === 'sync-guild-mesh-quad-expression-soak') {
     if (platform.mode === 'guild' && platform.guild?.guild?.id) {
       const gid = platform.guild.guild.id