Refactor code for improved readability and performance

GET_EMAIL_FROM_API.md

@@ -0,0 +1,28 @@
+# Get Cloudflare Email for API Key
+
+Since you're using CLOUDFLARE_API_KEY, you need to add your Cloudflare account email.
+
+## Option 1: Add Email to .env
+
+Add this line to your .env file:
+```
+CLOUDFLARE_EMAIL="your-email@example.com"
+```
+
+## Option 2: Create API Token (Recommended)
+
+1. Go to: https://dash.cloudflare.com/profile/api-tokens
+2. Click **Create Token**
+3. Use **Edit zone DNS** template OR create custom with:
+   - **Zone** → **DNS** → **Edit**
+   - **Account** → **Cloudflare Tunnel** → **Edit**
+4. Copy the token
+5. Add to .env:
+   ```
+   CLOUDFLARE_API_TOKEN="your-token-here"
+   ```
+6. Remove or comment out CLOUDFLARE_API_KEY
+
+## Option 3: Get Email from Cloudflare Dashboard
+
+Your email is the one you use to log into Cloudflare Dashboard.