feat(audit-csv): Phase 690 audit CSV mesh and mod digest journeys

Add runAuditCsvMeshPushJourney and runModDigestNotifyJourney for
test:agentctl-phase690-audit regression.

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 690 (v0.8.665):** `runAuditCsvMeshPushJourney`, `runModDigestNotifyJourney`; bundle `test:agentctl-phase690-audit`.
+
 **Phase 689 (v0.8.664):** `runAutomationHealthDashboardJourney`, `runDigestRelayHandoffJourney`; bundle `test:agentctl-phase689-health`.
 
 **Phase 688 (v0.8.663):** `runHookDeliveryReceiptJourney`, `runHookFailureDigestJourney`; bundle `test:agentctl-phase688-delivery`.

headless.js

@@ -3442,6 +3442,36 @@ class HeadlessSession {
     }
   }
 
+  async runAuditCsvMeshPushJourney () {
+    if (!this.platform) throw new Error('headless not started')
+    await this.registerUser({ username: 'ac690', displayName: 'Audit CSV 690' })
+    await this.createGuild({ name: 'Audit CSV 690', publicListing: false })
+    await this.wait({ mode: 'guild' }, 45000)
+    const pushed = await this.platform.pushAuditExportCsvToMesh({ filter: 'all', limit: 50 })
+    const v = await this.refreshView()
+    if (!pushed?.signature && !v.auditExportCsvMeta?.signature) {
+      throw new Error('expected signed audit CSV after mesh push')
+    }
+    return {
+      guildCsvExportCount: (v.auditExportCsvRows || []).length,
+      hasMeta: v.auditExportCsvMeta != null
+    }
+  }
+
+  async runModDigestNotifyJourney () {
+    if (!this.platform) throw new Error('headless not started')
+    await this.registerUser({ username: 'md690', displayName: 'Mod Digest 690' })
+    await this.createGuild({ name: 'Mod Digest 690', publicListing: false })
+    await this.wait({ mode: 'guild' }, 45000)
+    const prefs = await this.platform.getHookFailureDigestNotifyPrefs()
+    const v = await this.refreshView()
+    return {
+      hasPrefsField: v.hookFailureDigestNotifyPrefs != null,
+      modDigestEnabled: !!prefs.modDigestGroupDmEnabled,
+      guildCsvExportCount: (v.auditExportCsvRows || []).length
+    }
+  }
+
   async runForumPostSearchJourney () {
     if (!this.platform) throw new Error('headless not started')
     await this.registerUser({ username: 'fm672', displayName: 'Forum 672' })