feat(platform): Phase 549 guild-admin span metadata extend

Add channelCount on create, remainingChannelCount on delete, and
requestedCount/reorderedAll on channel.reorder span ends.

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

README.md

@@ -187,6 +187,8 @@ Expose a single `EventEmitter` API the UI drives over IPC (`apps/pearcord/index.
 
 **v0.8.497 (Phase 534):** Role/permission spans extend — `role.create`/`update`/`delete`/`reorder` and `permission.overwrite*` end metadata (`spanKind`, `activeChannelId`, `customRoleCount`). UI roles panel compositor wrappers, role/overwrite `aria-current=location`, clipboard roles busy flags. Bundle: `npm run test:phase534-roles`. See [ROLES.md](../../docs/ROLES.md).
 
+**v0.8.512 (Phase 549):** Guild-admin spans extend — `channel.create` `channelCount`, `channel.delete` `remainingChannelCount`, `channel.reorder` `requestedCount`/`reorderedAll`. UI split channel list chrome/rows + category panels; `.guild-admin-modal-live`; clipboard `guildAdminChannelModalBusy`. ui-flow composer focus after `rename-channel`/`create-category`. Bundle: `npm run test:phase549-guild-admin`. See [CHANNELS.md](../../docs/CHANNELS.md).
+
 **v0.8.496 (Phase 533):** Guild-admin spans extend — `channel.create`/`delete`/`reorder` end metadata (`spanKind`, `activeChannelId`, `createdChannelId`). UI panel compositor wrappers, channel row `aria-current=location`, clipboard guild-admin busy flags. Bundle: `npm run test:phase533-guild-admin`. See [CHANNELS.md](../../docs/CHANNELS.md).
 
 **v0.8.511 (Phase 548):** Invite spans extend — `guild.invite` (`maxUses`, `activeChannelId`), `invite.revoke` (`activeChannelId`). UI split hub buttons/banner + join/invite modal panels, `.invite-modal-live`, clipboard `invitesJoinModalBusy`/`invitesInviteModalBusy`. ui-flow composer focus after `create-invite`. Bundle: `npm run test:phase548-invites`. See [INVITES.md](../../docs/INVITES.md).

index.js

@@ -12354,13 +12354,15 @@ class PearcordPlatform extends EventEmitter {
         targetId: deletedId
       })
       this.emit('channel-delete', payload)
+      const remaining = await this.guild.listChannels()
       span.end({
         guildId,
         channelId: deletedId,
         wasActive,
         channelType: prevCh?.type || payload?.type || null,
         spanKind: 'channel.delete',
-        activeChannelId: this.activeChannelId
+        activeChannelId: this.activeChannelId,
+        remainingChannelCount: remaining.length
       })
       return payload
     } catch (err) {
@@ -12400,6 +12402,7 @@ class PearcordPlatform extends EventEmitter {
         targetId: channel.id
       })
       this.emit('channel', channel)
+      const channelCount = (await this.guild.listChannels()).length
       span.end({
         guildId,
         channelId: channel.id,
@@ -12408,7 +12411,8 @@ class PearcordPlatform extends EventEmitter {
         nameLen: String(name || '').trim().length,
         spanKind: 'channel.create',
         activeChannelId: this.activeChannelId,
-        createdChannelId: channel.id
+        createdChannelId: channel.id,
+        channelCount
       })
       return channel
     } catch (err) {
@@ -12455,8 +12459,10 @@ class PearcordPlatform extends EventEmitter {
       parentId: parentId || null,
       updatedCount: updated.length,
       channelCount: ids.length,
+      requestedCount: ids.length,
       spanKind: 'channel.reorder',
-      activeChannelId: this.activeChannelId
+      activeChannelId: this.activeChannelId,
+      reorderedAll: updated.length === ids.length
     })
     return updated
     } catch (err) {