feat(oauth2): add email format transformation support (#818)

* feat(oauth2): add email format transformation support

- Add enableEmailFormat, userEmailFormat, userEmailReplace fields
- Support regex pattern matching and replacement template ($1, $2, etc.)
- Add Linux Do OAuth2 template with email format pre-configured
- Add input length limit (256 chars) to prevent ReDoS attacks
- Update admin UI with conditional display and tooltips
- Update documentation (zh/en) with configuration examples

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* chore: update lock files and version

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: restore accessTokenFormat as optional field

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "cloudflare_temp_email",
-  "version": "1.2.1",
+  "version": "1.3.0",
   "private": true,
   "type": "module",
   "scripts": {
@@ -49,7 +49,7 @@
     "vite-plugin-wasm": "^3.5.0",
     "workbox-build": "^7.4.0",
     "workbox-window": "^7.4.0",
-    "wrangler": "^4.59.2"
+    "wrangler": "^4.60.0"
   },
   "packageManager": "pnpm@10.10.0+sha512.d615db246fe70f25dcfea6d8d73dee782ce23e2245e3c4f6f888249fb568149318637dca73c2c5c8ef2a4ca0d5657fb9567188bfab47f566d1ee6ce987815c39"
 }