Add hardware layout docs and PERC H730 non-RAID setup script

Initial structure for R730xd passthrough configuration:
- README with VM layout table and setup order
- docs/hardware-layout.md: bay/GPU/USB mapping worksheet
- scripts/perc-nonraid.sh: convert H730 drives to per-disk non-RAID mode

https://claude.ai/code/session_01TxTSnxDjgEVuNztdsWQjMD

README.md

@@ -1 +1,31 @@
-# local_proxmox
+# local_proxmox
+
+Proxmox VE 9.1 configuration, scripts, and VM layouts for a Dell R730xd homelab.
+
+## Hardware
+
+- **Host:** Dell PowerEdge R730xd
+- **RAID controller:** PERC H730 (configured in Non-RAID/per-disk passthrough mode)
+- **GPUs:** 2x Quadro P3300 4GB (VFIO passthrough, one per VM)
+- **TPU:** Google Coral USB (Frigate object detection)
+- **Bays:** 12x (not all populated)
+
+## VM Layout
+
+| VM ID | Role | Drives | GPU | Coral |
+|-------|------|--------|-----|-------|
+| 100 | Frigate NVR | Bays 1–8 | Quadro #1 (VFIO) | Yes |
+| 101 | TBD | Bays 9–10 | Quadro #2 (VFIO) | No |
+| 102 | TBD | Bays 11–12 | None | No |
+
+## Setup Order
+
+1. [`scripts/perc-nonraid.sh`](scripts/perc-nonraid.sh) — convert H730 to per-disk non-RAID mode
+2. [`scripts/build-bay-map.sh`](scripts/build-bay-map.sh) — map physical bays to stable `/dev/disk/by-id` paths
+3. [`scripts/gpu-passthrough-setup.sh`](scripts/gpu-passthrough-setup.sh) — configure IOMMU + VFIO for both Quadros
+4. Apply VM configs from [`vm-configs/`](vm-configs/)
+5. Deploy Frigate from [`frigate/`](frigate/)
+
+## Docs
+
+- [`docs/hardware-layout.md`](docs/hardware-layout.md) — bay/device/VM mapping worksheet