feat(backend): update collections, config and migration tools

Update Payload CMS configuration, collections (Audit, Posts), and add migration scripts/reports.

apps/backend/scripts/migration/check-links.ts

@@ -0,0 +1,48 @@
+#!/usr/bin/env tsx
+import { config as dotenvConfig } from 'dotenv'
+import { resolve, dirname } from 'path'
+import { fileURLToPath } from 'url'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = dirname(__filename)
+const envPath = resolve(__dirname, '../../.env')
+
+dotenvConfig({ path: envPath })
+
+import { parseWebflowCSV } from './csvParser'
+import { htmlToLexical } from './lexicalConverter'
+
+async function main() {
+  const data = await parseWebflowCSV('/Users/pukpuk/Dev/website-enchun-mgr/恩群數位行銷 - 行銷放大鏡集.csv')
+  const post = data.posts.find((p: any) => p.title.includes('掌握故事行銷'))
+
+  const lexical = htmlToLexical(post.content || '')
+  const parsed = JSON.parse(lexical)
+
+  console.log('All link URLs:')
+  const findLinks = (nodes: any[], depth = 0) => {
+    if (depth > 10) return
+    nodes.forEach((node: any, i: number) => {
+      if (node.type === 'link') {
+        const url = node.url
+        const isValid = url && url !== '#' && (url.startsWith('http://') || url.startsWith('https://') || url.startsWith('/'))
+        console.log(` [${depth}.${i}] ${url} - Valid: ${isValid}`)
+      }
+      if (node.children) {
+        findLinks(node.children, depth + 1)
+      }
+    })
+  }
+  findLinks(parsed.root?.children || [])
+
+  // Check raw HTML for links
+  console.log('\nRaw HTML links:')
+  const linkRegex = /<a[^>]+href=["']([^"']+)["'][^>]*>/gi
+  let match
+  const html = post.content || ''
+  while ((match = linkRegex.exec(html)) !== null) {
+    console.log(' ', match[1])
+  }
+}
+
+main().catch(console.error)