Remove podcast checklist backend, calendar events and reminder emails; v2.14.3

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

server/routes/admin-content.js

@@ -26,13 +26,11 @@ import {
   queueContactSubmissionsWrite,
   queueReplyTemplatesWrite,
   queueReplyHistoryWrite,
-  queuePodcastChecklistWrite,
   queueWebhooksWrite,
   createBackupSnapshot,
   listBackupPreviews,
   readBackupPreview,
   restoreFromBackup,
-  sanitizePodcastChecklist,
 } from '../data.js'
 import {
   pruneStatsByDays,
@@ -278,21 +276,6 @@ export function register(app) {
     res.json(status)
   })
 
-  app.get('/api/admin-podcast-checklist', requireAdminAuth, (_req, res) => {
-    res.json({ checklist: state.podcastChecklist })
-  })
-
-  app.put('/api/admin-podcast-checklist', requireAdminAuth, async (req, res) => {
-    try {
-      const safeChecklist = sanitizePodcastChecklist(req.body?.checklist)
-      state.podcastChecklist = safeChecklist
-      await queuePodcastChecklistWrite()
-      res.json({ ok: true, checklist: safeChecklist })
-    } catch {
-      res.status(500).json({ message: 'Failed to save podcast checklist.' })
-    }
-  })
-
   app.get('/api/site-config', async (_req, res) => {
     try {
       const parsed = await loadSiteContentFile(DATA_FILE)