feat: Cast Iron Scout agent prototype

- Created autonomous cast iron deal scanner
- Scans eBay RSS feeds hourly for cast iron cookware
- Calculates FMV based on brand, type, size
- Sends Telegram alerts for deals ≥50% below FMV
- Identifies Griswold, Wagner, Wapak, Birmingham, Lodge, Victor
- Tracks seen items to avoid duplicate alerts
- Valuation engine with size multipliers
- Configurable preferences in config.json

Known issue: eBay RSS unreliable - next iteration will use proper scraping

agents/cast-iron-scout/README.md

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+# Cast Iron Scout 🔥🍳
+
+Autonomous agent that scans for undervalued cast iron cookware deals and alerts you when pieces are priced ≥50% below fair market value.
+
+## Status: 🚧 Prototype
+
+**Built:** April 9, 2026  
+**Current Sources:** eBay (RSS feeds)  
+**Next:** Facebook Marketplace, Craigslist integration
+
+## What It Does
+
+1. **Scans** marketplaces every hour for cast iron cookware
+2. **Identifies** brands (Griswold, Wagner, Wapak, Birmingham, Lodge, etc.)
+3. **Calculates** fair market value based on brand, type, and size
+4. **Alerts** you via Telegram when deals ≥50% below FMV are found
+5. **Tracks** seen items to avoid duplicate alerts
+
+## Example Alert
+
+```
+🔥 CAST IRON DEAL ALERT!
+
+Item: Griswold #8 Skillet - Slant Logo
+Price: $45.00
+FMV: $180.00
+Discount: 75% below FMV! 💰
+
+Source: eBay
+Found: 2026-04-09T17:44:23
+
+🔗 [link to item]
+
+Action: Buy now / Bid / Ignore
+```
+
+## Architecture
+
+```
+cast-iron-scout/
+├── scanner.py           # Main scanning engine
+├── valuation.py         # FMV calculator
+├── config.json          # Your preferences
+├── state/              # Track seen items
+├── logs/               # Scan logs
+└── sources/
+    ├── ebay_scanner.py  # eBay scanner (RSS)
+    ├── facebook.py      # [TODO]
+    └── craigslist.py    # [TODO]
+```
+
+## Configuration
+
+Edit `config.json` to customize:
+- **min_discount_percent**: Minimum discount to alert (default: 50%)
+- **max_distance_miles**: Max distance for local pickup (default: 500)
+- **preferred_brands**: Brands to prioritize
+- **item_types**: Types of items to scan for
+- **telegram_target**: Where to send alerts
+
+## Current Features
+
+✅ Basic eBay RSS scanning  
+✅ Brand identification (Griswold, Wagner, Wapak, etc.)  
+✅ FMV calculation engine  
+✅ Telegram alerts  
+✅ Duplicate prevention  
+✅ Hourly scanning  
+
+## Known Issues / TODO
+
+- [ ] eBay RSS feed unreliable - need to implement proper scraping
+- [ ] Add Facebook Marketplace scanner
+- [ ] Add Craigslist scanner
+- [ ] Image recognition for logos/marks
+- [ ] Price history tracking
+- [ ] Condition assessment from photos
+- [ ] Mobile app integration?
+
+## Running Manually
+
+```bash
+cd /Users/claw/.openclaw/workspace/agents/cast-iron-scout
+python3 scanner.py
+```
+
+## Logs
+
+Check `logs/scanner-YYYYMMDD.log` for scan history.
+
+## Next Steps
+
+1. Fix eBay scanner (use proper HTML scraping vs RSS)
+2. Add Facebook Marketplace (requires Selenium/Playwright)
+3. Add image recognition for logos
+4. Build sold items database for better FMV
+
+---
+
+**Maintained by:** Forge (Chris's SaaS Operations Bot)  
+**Version:** 0.1.0 (Prototype)