Add agentctl journey for stage speaker DM bridge.

runStageSpeakerDmBridgeJourney validates bridgeStageSpeakerToDmVoice and dm mode switch.

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

headless.js

@@ -1251,6 +1251,32 @@ class HeadlessSession {
     return { firstId: queued.id, nextId: next.id, nextSendAt: next.sendAt }
   }
 
+  async runStageSpeakerDmBridgeJourney (peerUserId, peerDisplayName) {
+    if (!this.platform) throw new Error('headless not started')
+    const peer = peerUserId || 'c'.repeat(32)
+    await this.createGuild({ name: 'Stage DM Bridge Guild' })
+    const stageCh = await this.createGuildChannel('Bridge Stage', { type: 'stage' })
+    if (!stageCh?.id) throw new Error('expected stage channel')
+    await this.joinGuildStageChannel(stageCh.id)
+    const guildId = this._lastView?.guild?.id
+    if (!guildId) throw new Error('expected guild id')
+    await this.platform.stage.setRole({
+      guildId,
+      channelId: stageCh.id,
+      userId: peer,
+      role: 'speaker'
+    })
+    const out = await this.platform.bridgeStageSpeakerToDmVoice({
+      userId: peer,
+      displayName: peerDisplayName || 'Stage Peer',
+      startVoiceCall: false
+    })
+    await this.refreshView()
+    if (this._lastView?.mode !== 'dm') throw new Error('expected dm mode after stage bridge')
+    if (!out?.channelId) throw new Error('expected dm channel from stage bridge')
+    return { channelId: out.channelId, peerUserId: peer }
+  }
+
   async runDmVideoLiveJourney (peerUserId, peerDisplayName) {
     if (!this.platform) throw new Error('headless not started')
     await this.openDmWithPeer(peerUserId, peerDisplayName)