feat: add Open Next configuration and Cloudflare integration

- Created open-next.config.ts for Cloudflare configuration.
- Updated package.json to include Cloudflare build, preview, deploy, and type generation scripts.
- Added @opennextjs/cloudflare dependency.
- Downgraded Next.js version to 16.0.10 for compatibility.
- Added wrangler as a dependency for Cloudflare Workers.
- Created wrangler.jsonc for Cloudflare Worker configuration.

Author: hamster1963

biome.json

@@ -3,7 +3,7 @@
   "vcs": { "enabled": false, "clientKind": "git", "useIgnoreFile": false },
   "files": {
     "ignoreUnknown": false,
-    "includes": ["**", "!**/.next", "!**/public", "!**/styles/globals.css"]
+    "includes": ["**", "!**/.next", "!**/public", "!**/styles/globals.css", "!**/.open-next"]
   },
   "formatter": {
     "enabled": true,