feat(webhooks): Phase 685 runWebhookCreateJourney and runWebhookExecuteJourney (v0.8.660)

Add headless webhook create and execute journeys for agentctl regression.
Update README for test:agentctl-phase685-webhooks bundle.

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

README.md

@@ -2,6 +2,8 @@
 
 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 685 (v0.8.660):** `runWebhookCreateJourney`, `runWebhookExecuteJourney`; bundle `test:agentctl-phase685-webhooks`.
+
 **Phase 684 (v0.8.659):** `runBotInstallJourney`, `runBotMessageJourney`; bundle `test:agentctl-phase684-bots`.
 
 **Phase 683 (v0.8.658):** `runSlashCommandCreateJourney`, `runSlashCommandInvokeJourney`; bundle `test:agentctl-phase683-slash`.

headless.js

@@ -3263,6 +3263,46 @@ class HeadlessSession {
     return { botId: out.bot.id, messageId: msg.id, guildBotCount: v.bots.length }
   }
 
+  async runWebhookCreateJourney () {
+    if (!this.platform) throw new Error('headless not started')
+    await this.registerUser({ username: 'wh685', displayName: 'Webhook Create 685' })
+    await this.createGuild({ name: 'Webhook Create 685', publicListing: false })
+    await this.wait({ mode: 'guild' }, 45000)
+    const v0 = await this.refreshView()
+    const ch = (v0.channels || []).find((c) => c.type === 'text' || c.type === 'announcement')
+    if (!ch?.id) throw new Error('expected text channel')
+    const out = await this.createGuildChannelWebhook(ch.id, 'Phase685 Hook')
+    if (!out?.webhook?.id || !out?.token) throw new Error('expected webhook create result')
+    const v = await this.refreshView()
+    const found = (v.guildWebhooks || []).find((h) => h.id === out.webhook.id)
+    if (!found) throw new Error('expected webhook in view.guildWebhooks')
+    return {
+      webhookId: out.webhook.id,
+      guildWebhookCount: v.guildWebhooks.length,
+      tokenLen: out.token.length
+    }
+  }
+
+  async runWebhookExecuteJourney () {
+    if (!this.platform) throw new Error('headless not started')
+    await this.registerUser({ username: 'we685', displayName: 'Webhook Execute 685' })
+    await this.createGuild({ name: 'Webhook Execute 685', publicListing: false })
+    await this.wait({ mode: 'guild' }, 45000)
+    const v0 = await this.refreshView()
+    const ch = (v0.channels || []).find((c) => c.type === 'text' || c.type === 'announcement')
+    if (!ch?.id) throw new Error('expected text channel')
+    const out = await this.createGuildChannelWebhook(ch.id, 'Execute685 Hook')
+    if (!out?.token) throw new Error('expected webhook token')
+    const msg = await this.executeGuildChannelWebhook(out.token, 'phase685 webhook execute journey')
+    if (!msg?.id) throw new Error('expected webhook message')
+    const v = await this.refreshView()
+    return {
+      webhookId: out.webhook?.id,
+      messageId: msg.id,
+      guildWebhookCount: (v.guildWebhooks || []).length
+    }
+  }
+
   async runForumPostSearchJourney () {
     if (!this.platform) throw new Error('headless not started')
     await this.registerUser({ username: 'fm672', displayName: 'Forum 672' })