Create COMPATABILITY.md

Author: Pnwcomputers

docs/COMPATABILITY.md

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+# Hardware Compatibility
+
+## Tested Systems
+| Manufacturer | Model | Windows 10 | Windows 11 | Notes |
+|--------------|-------|------------|------------|-------|
+| Dell | OptiPlex 7090 | ✅ | ✅ | Full compatibility |
+| HP | EliteDesk 800 | ✅ | ✅ | BIOS update recommended |
+| Lenovo | ThinkCentre M920 | ✅ | ⚠️ | Driver issues with Win11 |
+
+## Known Issues
+- Surface devices: Touch driver conflicts
+- Gaming laptops: Manufacturer software conflicts