feat(agentctl): DM friend-open and group-rename headless journeys (Phase 655)

Add runDmFriendOpenComposerFocusJourney and runGroupDmRenameJourney for
autonomous inbox regression alongside existing sidebar search journey.

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

README.md

@@ -2,9 +2,9 @@
 
 Agent control plane for Pearcord — send the same IPC messages the UI sends, read `view` snapshots, and run scripted journeys against a **live worker** or an in-process **headless** session.
 
-**Phase 655 (v0.8.627):** Headless `runDmSidebarSearchJourney(peerUserId, peerDisplayName)` — open DM, send marker, assert preview. Smoke: `npm run test:agentctl-dm-sidebar-phase655` (app repo).
+**Phase 655 (v0.8.628):** Headless `runDmFriendOpenComposerFocusJourney`, `runGroupDmRenameJourney`; smokes `test:agentctl-dm-friend-focus-phase655`, `test:agentctl-group-rename-phase655`. Prior: `runDmSidebarSearchJourney` (v0.8.627).
 
-**Phase 654 (current, 50 swarm/repl/sync items active):** Primary autonomous testing vehicle per core rules. Manual (non-automated) runs of headless scenarios + mesh smokes used to verify composer autofocus/send button/grow + swarm retry changes (adaptive + discovery aid). Extended journeys for global resilience soaks (12-peer, heal under churn, CRDT coverage). Direct bin requires app cwd for bare resolution (smokes succeed). See PLATFORM_ROADMAP.md P654 items + AGENTCTL.md.
+**Phase 654 (50 swarm/repl/sync items):** Primary autonomous testing vehicle per core rules.
 
 ## Mission
 

headless.js

@@ -663,6 +663,36 @@ class HeadlessSession {
     return { channelId: v2.activeChannelId, preview: row.lastMessagePreview }
   }
 
+  /** Phase 655: friend-open path sets dm mode + active channel (composer focus via ui-flow). */
+  async runDmFriendOpenComposerFocusJourney (peerUserId, peerDisplayName) {
+    if (!this.platform) throw new Error('headless not started')
+    await this.openDmWithPeer(peerUserId, peerDisplayName)
+    const v = await this.refreshView()
+    if (v.mode !== 'dm') throw new Error('expected dm mode after friend open')
+    if (!v.activeChannelId) throw new Error('expected activeChannelId for composer focus path')
+    if (v.dmPeer !== peerUserId) {
+      throw new Error(`expected dmPeer ${peerUserId}, got ${v.dmPeer}`)
+    }
+    return { channelId: v.activeChannelId, dmPeer: v.dmPeer }
+  }
+
+  /** Phase 655: create group, rename, assert title in view. */
+  async runGroupDmRenameJourney (peerUserIds, initialName, nextName) {
+    if (!this.platform) throw new Error('headless not started')
+    const channel = await this.createGroupDm(peerUserIds, initialName)
+    if (!channel?.id) throw new Error('expected group channel id')
+    await this.platform.renameGroupDM({
+      channelId: channel.id,
+      displayName: nextName
+    })
+    const v = await this.refreshView()
+    if (v.mode !== 'dm' || !v.dmIsGroup) throw new Error('expected group dm mode')
+    if (v.dmTitle !== nextName) {
+      throw new Error(`expected dmTitle ${nextName}, got ${v.dmTitle}`)
+    }
+    return { channelId: channel.id, dmTitle: v.dmTitle }
+  }
+
   async exportGuildAuditLog (opts = {}) {
     if (!this.platform) throw new Error('headless not started')
     const out = await this.platform.exportAuditLog(opts)