feat: add daily request limit and refactor access control (#759)

- Add daily request limit per IP in blacklist settings (1-1,000,000/day)
- Refactor access control logic: merge blacklist and rate limit checks
- Remove RATE_LIMIT_API_DAILY_REQUESTS env var, use database config instead
- Move x-custom-auth check earlier in middleware chain
- Add comprehensive English documentation (31 new guide pages)
- Improve code structure and error handling

🤖 Generated with [Claude Code](https://claude.ai/code)

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

vitepress-docs/docs/en/guide/cli/pre-requisite.md

@@ -0,0 +1,17 @@
+# Prerequisites
+
+## Installing wrangler
+
+Install wrangler
+
+```bash
+npm install wrangler -g
+```
+
+## Clone the Project
+
+```bash
+git clone https://github.com/dreamhunter2333/cloudflare_temp_email.git
+# Switch to the latest tag or the branch you want to deploy, you can also use the main branch directly
+# git checkout $(git describe --tags $(git rev-list --tags --max-count=1))
+```