docs: Complete cron job documentation in README

SCHEDULER DOCUMENTATION:
- Built-in APScheduler runs automatically with backend
- 4 scheduled jobs: Domain check, TLD scrape, Auctions, Price alerts
- Optional external cron commands for production
- PM2 recommended setup for production
- Summary table of all cron jobs

README.md

@@ -589,6 +589,17 @@ This ensures identical prices on:
 
 ## Production Deployment
 
+### Required Cron Jobs Summary
+
+| Job | Frequency | Command |
+|-----|-----------|---------|
+| TLD Prices | Daily 03:00 UTC | `python scripts/seed_tld_prices.py` |
+| Domain Check | Daily 06:00 UTC | Built-in scheduler |
+| Auction Scrape | Hourly :30 | Built-in scheduler |
+| Price Alerts | Daily 04:00 UTC | Built-in scheduler |
+
+**Note:** All cron jobs run automatically via APScheduler when the backend is running. External cron is only needed if you disable the built-in scheduler.
+
 ### Docker (Recommended)
 
 ```bash
@@ -655,13 +666,53 @@ POST https://api.porkbun.com/api/json/v3/pricing/get
 - ✅ No authentication needed
 - ✅ Updated daily via scheduler
 
-### Scheduler Jobs
+### Scheduler Jobs (Built-in APScheduler)
+
+The backend includes a built-in scheduler that starts automatically with the application. **No external cron jobs needed!**
 
 | Job | Schedule | Description |
 |-----|----------|-------------|
-| **Domain Check** | Configurable (default: daily) | Checks all watched domains |
+| **Domain Check** | Daily at configured hour (default: 06:00 UTC) | Checks all watched domains for availability |
-| **TLD Price Scrape** | Daily at 03:00 UTC | Scrapes current TLD prices |
+| **TLD Price Scrape** | Daily at 03:00 UTC | Scrapes 886+ TLD prices from Porkbun API |
 | **Price Change Alerts** | Daily at 04:00 UTC | Sends email for price changes >5% |
+| **Auction Scrape** | Every hour at :30 | Scrapes domain auctions from ExpiredDomains |
+
+**Scheduler is enabled by default.** When you run `uvicorn app.main:app`, the scheduler starts automatically via the lifespan handler.
+
+### External Cron Jobs (Production - Optional)
+
+If you want more control, you can disable the built-in scheduler and use system cron:
+
+```bash
+# Disable built-in scheduler by setting env var
+DISABLE_SCHEDULER=true
+
+# Add to crontab (crontab -e)
+# TLD prices daily at 03:00 UTC
+0 3 * * * cd /path/to/pounce/backend && source venv/bin/activate && python scripts/seed_tld_prices.py >> /var/log/pounce/tld_scrape.log 2>&1
+
+# Domain check daily at 06:00 UTC  
+0 6 * * * cd /path/to/pounce/backend && source venv/bin/activate && python -c "import asyncio; from app.scheduler import check_all_domains; asyncio.run(check_all_domains())" >> /var/log/pounce/domain_check.log 2>&1
+
+# Auction scrape hourly at :30
+30 * * * * cd /path/to/pounce/backend && source venv/bin/activate && python -c "import asyncio; from app.scheduler import scrape_auctions; asyncio.run(scrape_auctions())" >> /var/log/pounce/auction_scrape.log 2>&1
+
+# Price alerts daily at 04:00 UTC
+0 4 * * * cd /path/to/pounce/backend && source venv/bin/activate && python -c "import asyncio; from app.scheduler import check_price_changes; asyncio.run(check_price_changes())" >> /var/log/pounce/price_alerts.log 2>&1
+```
+
+### PM2 with Scheduler (Recommended for Production)
+
+The easiest production setup is PM2 which keeps the backend running with its built-in scheduler:
+
+```bash
+cd backend && source venv/bin/activate
+pm2 start "uvicorn app.main:app --host 0.0.0.0 --port 8000" --name pounce-api
+pm2 save
+pm2 startup
+```
+
+This way, the APScheduler handles all cron jobs automatically.
 
 ### Manual Scrape