feat(ui-flow): composer focus after join-invite in guild mode (Phase 532)

Emit composer-focus-channel when join-invite succeeds with activeChannelId.

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.
 
+**v0.8.495 (Phase 532):** `join-invite` emits `composer-focus-channel` when `platform.mode === 'guild'` and `activeChannelId` is set. Bundle: `npm run test:phase532-invites` (app repo).
+
 **v0.8.490 (Phase 527):** `play-soundboard` emits `composer-focus-channel` in guild mode. Bundle: `npm run test:phase527-soundboard` (app repo).
 
 **v0.8.489 (Phase 526):** `start-screen-share` and `stop-screen-share` emit `composer-focus-channel` in guild mode. Bundle: `npm run test:phase526-screen` (app repo).

index.js

@@ -73,6 +73,12 @@ async function dispatchUiMessage (platform, msg, hooks = {}) {
   if (t === 'join-invite') {
     const result = await platform.joinInvite(msg.code)
     pushState()
+    if (platform.activeChannelId && platform.mode === 'guild') {
+      send({
+        type: 'composer-focus-channel',
+        channelId: platform.activeChannelId
+      })
+    }
     if (result?.kind === 'explore') {
       send({ type: 'deep-link-result', url: msg.code, ...result })
     }