feat: add AI email extraction with Cloudflare Workers AI

Add AI-powered email content extraction feature using Cloudflare Workers AI to automatically identify and extract important information from emails including verification codes, authentication links, service links, and subscription links.

Features:
- AI extraction with priority-based logic (auth_code > auth_link > service_link > subscription_link > other_link)
- Admin allowlist configuration with wildcard support (*@example.com)
- Frontend display in both email list (compact) and detail view (full mode)
- Bilingual documentation (Chinese/English)
- Database migration: add metadata field to raw_mails (v0.0.3 -> v0.0.4)

Technical highlights:
- Proper regex escaping for wildcard pattern matching
- Content truncation to avoid AI token limits
- Error handling that won't affect email receiving
- JSON schema validation for AI responses
- Type-safe TypeScript implementation
- Vue I18n support with special character escaping

References:
- Inspired by Alle Project: https://github.com/bestruirui/Alle
- Uses Cloudflare Workers AI JSON Mode

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>

worker/package.json

@@ -11,26 +11,26 @@
     "build": "wrangler deploy --dry-run --outdir dist --minify"
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "^4.20251111.0",
+    "@cloudflare/workers-types": "^4.20251205.0",
     "@eslint/js": "9.18.0",
     "@simplewebauthn/types": "10.0.0",
     "@types/node": "^22.19.1",
     "eslint": "9.18.0",
     "globals": "^15.15.0",
-    "typescript-eslint": "^8.46.4",
-    "wrangler": "^4.47.0"
+    "typescript-eslint": "^8.48.1",
+    "wrangler": "^4.53.0"
   },
   "dependencies": {
     "@aws-sdk/client-s3": "3.888.0",
     "@aws-sdk/s3-request-presigner": "3.888.0",
     "@simplewebauthn/server": "10.0.1",
-    "hono": "^4.10.5",
+    "hono": "^4.10.7",
     "jsonpath-plus": "^10.3.0",
     "mimetext": "^3.0.27",
-    "postal-mime": "^2.6.0",
+    "postal-mime": "^2.6.1",
     "resend": "^4.8.0",
     "telegraf": "4.16.3",
-    "worker-mailer": "^1.2.0"
+    "worker-mailer": "^1.2.1"
   },
   "pnpm": {
     "patchedDependencies": {