Phase 821: sync-guild-mesh-triple-ack-watermark IPC (v0.8.788).

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 821 (v0.8.788):** `sync-guild-mesh-triple-ack-watermark` recovery IPC. Bundle: `npm run test:ci-phase821`.
+
 **Phase 820 (v0.8.787):** `sync-guild-mesh-triple-roster-complete` recovery IPC. Bundle: `npm run test:ci-phase820`.
 
 **Phase 819 (v0.8.786):** `sync-guild-mesh-triple-sync-pending` recovery IPC. Bundle: `npm run test:ci-phase819`.

index.js

@@ -1342,6 +1342,30 @@ async function dispatchUiMessage (platform, msg, hooks = {}) {
     pushState({ structural: true, light: false, source: 'sync-guild-mesh-triple-messages' })
     return true
   }
+  if (t === 'sync-guild-mesh-triple-ack-watermark') {
+    if (platform.mode === 'guild' && platform.guild?.guild?.id) {
+      const gid = platform.guild.guild.id
+      const chId = platform.activeChannelId || null
+      platform.emit('guild-mesh-topology', {
+        guildId: gid,
+        meshPeerCount: platform.guild?.peers?.size ?? 0,
+        manualRecovery: true
+      })
+      if (typeof platform.clearGuildSyncPushHalt === 'function') {
+        platform.clearGuildSyncPushHalt(gid)
+      }
+      if (typeof platform._fanoutGuildSyncRequestWithAckWatermarks === 'function') {
+        platform._fanoutGuildSyncRequestWithAckWatermarks(chId)
+      } else if (typeof platform.requestGuildSyncFanout === 'function') {
+        platform.requestGuildSyncFanout()
+      }
+      platform.emit('guild-sync-health')
+      platform.emit('message')
+      platform.emit('guild-sync-ready', { guildId: gid, messages: 1, ackWatermark: 1 })
+    }
+    pushState({ structural: true, light: false, source: 'sync-guild-mesh-triple-ack-watermark' })
+    return true
+  }
   if (t === 'sync-guild-mesh-triple-roster-complete') {
     if (platform.mode === 'guild' && platform.guild?.guild?.id) {
       const gid = platform.guild.guild.id