feat(agentctl): archive fetch and digest schedule headless APIs (v0.8.537)

Add fetchGuildAuditExportArchive and setGuildDigestExportSchedule with
refreshView for Phase 574 compliance automation smokes.

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

README.md

@@ -25,6 +25,8 @@ Both modes use **`pearcord-ui-flow` `dispatchUiMessage`** — the same handler a
 
 **v0.8.527 (Phase 564):** Headless `sendFriendRequest` and `acceptFriendRequest` `refreshView` re-verified. Bundle: `npm run test:agentctl-phase564-contacts` (chains `test:agentctl-phase546-contacts`).
 
+**v0.8.537 (Phase 574):** Headless `fetchGuildAuditExportArchive`/`setGuildDigestExportSchedule` + `refreshView`. Bundle: `npm run test:agentctl-phase574-compliance` (chains `test:agentctl-phase573-audit`).
+
 **v0.8.536 (Phase 573):** Headless `exportGuildAuditLog`/`setAuditLogExportFilter` + `refreshView`. Bundle: `npm run test:agentctl-phase573-audit` (chains `test:agentctl-phase552-compliance`).
 
 **v0.8.535 (Phase 572):** Headless `banGuildMember`/`kickGuildMember`/`timeoutGuildMember` `refreshView` re-verified. Bundle: `npm run test:agentctl-phase572-moderation` (chains `test:agentctl-phase551-moderation`).

headless.js

@@ -649,6 +649,24 @@ class HeadlessSession {
     return out
   }
 
+  async fetchGuildAuditExportArchive (archiveId, opts = {}) {
+    if (!this.platform) throw new Error('headless not started')
+    const out = opts.fetchMesh
+      ? await this.platform.fetchAuditExportArchiveFromMesh(archiveId, opts)
+      : await this.platform.exportAuditExportArchive(archiveId, {
+          format: opts.format
+        })
+    await this.refreshView()
+    return out
+  }
+
+  async setGuildDigestExportSchedule (partial = {}) {
+    if (!this.platform) throw new Error('headless not started')
+    const out = await this.platform.setDigestExportSchedule(partial)
+    await this.refreshView()
+    return out
+  }
+
   async createGuildChannelWebhook (channelId, name, opts = {}) {
     if (!this.platform) throw new Error('headless not started')
     const out = await this.platform.createChannelWebhook({