Production ready

SETUP.md

@@ -154,15 +154,34 @@ EMAIL_FROM=alerts@yourdomain.com
 
 For development, use [Mailtrap.io](https://mailtrap.io) (free).
 
-### Adjust Plan Limits
-Edit `backend/.env`:
+### Adjust Plan Limits
+Edit `backend/.env`:
 
 ```env
 MAX_MONITORS_FREE=5
 MAX_MONITORS_PRO=50
-MIN_FREQUENCY_FREE=60    # minutes
-MIN_FREQUENCY_PRO=5      # minutes
-```
+MIN_FREQUENCY_FREE=60    # minutes
+MIN_FREQUENCY_PRO=5      # minutes
+```
+
+### Landing-only Mode
+For a waitlist-only launch:
+
+```env
+# backend/.env
+LANDING_ONLY_MODE=true
+ADMIN_PASSWORD=your-secure-admin-password
+```
+
+```env
+# frontend/.env.local
+NEXT_PUBLIC_LANDING_ONLY_MODE=true
+```
+
+With both flags enabled:
+- only `/`, `/blog`, `/privacy`, `/admin` stay public
+- all other frontend URLs redirect to `/` (HTTP 307)
+- backend only permits `/api/waitlist/*`, `POST /api/tools/meta-preview`, and `/health`
 
 ## 📖 Learn More