Refactor code for improved readability and performance

scripts/CLOUDFLARE_WEB_SETUP.md

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+# Cloudflare Credentials Web Setup
+
+A web-based interface to configure your Cloudflare API credentials.
+
+## Quick Start
+
+1. **Start the web server:**
+   ```bash
+   ./scripts/start-cloudflare-setup.sh
+   ```
+
+2. **Open in your browser:**
+   - http://localhost:5000
+   - http://127.0.0.1:5000
+
+3. **Fill in the form:**
+   - Enter your Cloudflare email
+   - Add your Global API Key or API Token
+   - Optionally add Account ID, Zone ID, Domain, and Tunnel Token
+   - Click "Save Credentials"
+
+4. **Test your connection:**
+   - Click "Test API Connection" to verify credentials work
+
+5. **Stop the server:**
+   - Press `Ctrl+C` in the terminal
+
+## Features
+
+- ✅ View current credential status
+- ✅ Update credentials via web form
+- ✅ Test API connection
+- ✅ Secure (only accessible from localhost)
+- ✅ Automatically saves to `.env` file
+
+## Getting Your Credentials
+
+### Global API Key
+1. Go to: https://dash.cloudflare.com/profile/api-tokens
+2. Scroll to **API Keys** section
+3. Click **View** next to **Global API Key**
+4. Enter your password
+5. Copy the key
+
+### API Token (Recommended)
+1. Go to: https://dash.cloudflare.com/profile/api-tokens
+2. Click **Create Token**
+3. Use **Edit zone DNS** template
+4. Add permission: **Account** → **Cloudflare Tunnel** → **Edit**
+5. Copy the token
+
+### Account ID & Zone ID
+- Found in your Cloudflare dashboard
+- Or use the web interface to test and it will help you find them
+
+## Troubleshooting
+
+**Port 5000 already in use?**
+- The script will show an error
+- Kill the process: `lsof -ti:5000 | xargs kill -9`
+- Or modify the port in `cloudflare-setup-web.py`
+
+**Can't access from browser?**
+- Make sure you're accessing from the same machine
+- The server only listens on localhost (127.0.0.1) for security
+