Phase 782: surface presence count on guild-sync ingest and ready events

Return presence applied from vector ingest; wire emits guild-sync-ready when
presenceVector-only bundles arrive so workers push peer status to UI.

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

README.md

@@ -2,6 +2,8 @@
 
 Application facade: one `PearcordPlatform` class that wires identity, database, guild mesh, DMs, invites, voice, discovery, bots, and dozens of feature modules for the Pearcord desktop sidecar and companion. **Mixin sources:** [`mixins/README.md`](mixins/README.md) — `domain/`, `json-export/`, `runtime/{core,mesh,guild-sync,search-discovery,partition-heal,view,voice-dm,features}/`. Architecture: [PLATFORM_MIXINS.md](../../docs/PLATFORM_MIXINS.md). Regenerate after manifest edits: `cd apps/pearcord && npm run regenerate:platform-mixins`. OTA prestage recursively verifies symbols under `mixins/` — [RELEASE.md](../../docs/RELEASE.md#prestage-sync-file-deps).
 
+**Phase 782 (v0.8.749):** Presence vector ingest → `guild-sync-ready` with `presence`; wire vector-only slice detection. Bundle: `npm run test:ci-phase782`.
+
 **Phase 781 (v0.8.748):** Member roster mesh sync — `guild-sync-ready` on member-page ingest; UI propagation via worker structural push. Bundle: `npm run test:ci-phase781`.
 
 **Phase 780 (v0.8.747):** Guild mesh loading sync — peer retry on `createGuild` with 0 peers; `guild-loading` structural push path (worker + ui-flow). Bundle: `npm run test:ci-phase780`.

mixins/runtime/guild-sync/platform-guild-sync-ingest-mixin.js

@@ -582,11 +582,13 @@ async _ingestGuildSync (payload) {
   if (added > 0) {
     this._gossipGuildSyncAck(this.activeChannelId)
   }
+  let presenceApplied = 0
   if (payload.presenceVector?.length) {
-    await this._ingestPresenceVectorBundle(
-      payload.guildId,
-      payload.presenceVector
-    ).catch(() => {})
+    presenceApplied =
+      (await this._ingestPresenceVectorBundle(
+        payload.guildId,
+        payload.presenceVector
+      ).catch(() => 0)) || 0
   }
   const reactionChanges = await this._ingestReactionsSyncBundle(payload.reactions || [])
   let sparse = { mode: 'gossip', added: 0 }
@@ -613,6 +615,7 @@ async _ingestGuildSync (payload) {
   return {
     messages: added,
     members: membersAdded,
+    presence: presenceApplied,
     reactions: reactionChanges,
     sparse,
     attachPull,

mixins/runtime/guild-sync/platform-guild-wire-mixin.js

@@ -244,7 +244,8 @@ _wireGuild (guildInstance) {
         })
         const payloadMsgs = payload?.messages?.length || 0
         const payloadMems = payload?.members?.length || 0
-        const hasSlice = payloadMsgs > 0 || payloadMems > 0
+        const payloadPres = payload?.presenceVector?.length || 0
+        const hasSlice = payloadMsgs > 0 || payloadMems > 0 || payloadPres > 0
         if (!result && !hasSlice) return
         this._lastGuildSyncIngestAt = Date.now()
         const msgCount =
@@ -255,11 +256,16 @@ _wireGuild (guildInstance) {
           typeof result === 'object'
             ? Math.max(result.members || 0, payloadMems)
             : payloadMems
-        if (msgCount > 0 || memCount > 0 || hasSlice) {
+        const presCount =
+          typeof result === 'object'
+            ? Math.max(result.presence || 0, payloadPres)
+            : payloadPres
+        if (msgCount > 0 || memCount > 0 || presCount > 0 || hasSlice) {
           this.emit('guild-sync-ready', {
             guildId: payload?.guildId,
             messages: msgCount,
-            members: memCount
+            members: memCount,
+            presence: presCount
           })
           if (payload?.guildId === this.guild?.guild?.id) {
             this._touchAllGuildMeshPeersSeen(payload.guildId, 'guild-sync')