Add VM config examples and Frigate NVR setup

vm-configs/:
- 100-frigate.conf.example: Frigate VM with Quadro P2200 #1, Coral USB, bays 1-8
- 101.conf.example: GPU VM with Quadro P2200 #2, bays 9-10
- 102.conf.example: Utility VM, bays 11-12

frigate/:
- docker-compose.yml: nvidia runtime + Coral USB passthrough, healthcheck
- config.yml: NVDEC hwaccel (preset-nvidia-h264), Coral USB detector,
  motion-based recording retain, per-object score thresholds

https://claude.ai/code/session_01TxTSnxDjgEVuNztdsWQjMD

vm-configs/100-frigate.conf.example

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+# Proxmox VM 100 — Frigate NVR
+#
+# Copy to /etc/pve/qemu-server/100.conf after filling in:
+#   - hostpci0: real PCI address from gpu-passthrough-setup.sh output
+#   - scsi1–scsi8: real /dev/disk/by-id paths from build-bay-map.sh output
+#   - net0: real MAC (Proxmox generates one; leave it if creating via UI)
+#
+# Requirements on the Proxmox host before starting this VM:
+#   1. scripts/perc-nonraid.sh — drives in non-RAID mode
+#   2. scripts/gpu-passthrough-setup.sh — IOMMU + vfio-pci active, host rebooted
+#   3. Coral USB plugged in
+
+agent: 1
+bios: ovmf
+boot: order=scsi0
+cores: 8
+cpu: host
+machine: q35
+memory: 16384
+name: frigate
+numa: 0
+ostype: l26
+scsihw: virtio-scsi-single
+sockets: 1
+
+# OS disk — on Proxmox local storage, adjust pool name as needed
+scsi0: local-lvm:vm-100-disk-0,cache=writeback,size=64G
+
+# Data drives — bays 1–8, raw disk passthrough
+# Fill in by-id paths from build-bay-map.sh
+scsi1: /dev/disk/by-id/PLACEHOLDER_BAY1,size=0
+scsi2: /dev/disk/by-id/PLACEHOLDER_BAY2,size=0
+scsi3: /dev/disk/by-id/PLACEHOLDER_BAY3,size=0
+scsi4: /dev/disk/by-id/PLACEHOLDER_BAY4,size=0
+scsi5: /dev/disk/by-id/PLACEHOLDER_BAY5,size=0
+scsi6: /dev/disk/by-id/PLACEHOLDER_BAY6,size=0
+scsi7: /dev/disk/by-id/PLACEHOLDER_BAY7,size=0
+scsi8: /dev/disk/by-id/PLACEHOLDER_BAY8,size=0
+
+# Quadro P2200 #1 — GPU passthrough
+# Replace XX:00 with real PCI address (e.g. 03:00)
+# pcie=1 uses PCIe bus; x-vga=1 passes primary display output
+# Proxmox auto-includes the HDMI audio sibling (XX:00.1)
+hostpci0: 0000:XX:00,pcie=1,x-vga=1
+
+# Google Coral USB — pass both VID:PID values
+# Coral re-enumerates after first inference load: 1a6e:089a → 18d1:9302
+usb0: host=1a6e:089a
+usb1: host=18d1:9302
+
+# Network
+net0: virtio=BC:24:11:00:00:64,bridge=vmbr0,firewall=1
+
+# EFI disk (required for OVMF/UEFI boot with q35 machine)
+efidisk0: local-lvm:vm-100-disk-1,efitype=4m,pre-enrolled-keys=0,size=4M

vm-configs/101.conf.example

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+# Proxmox VM 101 — General purpose with GPU
+#
+# Copy to /etc/pve/qemu-server/101.conf after filling in:
+#   - hostpci0: real PCI address of Quadro P2200 #2
+#   - scsi1–scsi2: real /dev/disk/by-id paths for bays 9–10
+
+agent: 1
+bios: ovmf
+boot: order=scsi0
+cores: 8
+cpu: host
+machine: q35
+memory: 16384
+name: vm101
+numa: 0
+ostype: l26
+scsihw: virtio-scsi-single
+sockets: 1
+
+# OS disk
+scsi0: local-lvm:vm-101-disk-0,cache=writeback,size=64G
+
+# Data drives — bays 9–10
+scsi1: /dev/disk/by-id/PLACEHOLDER_BAY9,size=0
+scsi2: /dev/disk/by-id/PLACEHOLDER_BAY10,size=0
+
+# Quadro P2200 #2
+# Replace XX:00 with real PCI address from gpu-passthrough-setup.sh output
+hostpci0: 0000:XX:00,pcie=1,x-vga=1
+
+# Network
+net0: virtio=BC:24:11:00:00:65,bridge=vmbr0,firewall=1
+
+# EFI disk
+efidisk0: local-lvm:vm-101-disk-1,efitype=4m,pre-enrolled-keys=0,size=4M

vm-configs/102.conf.example

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+# Proxmox VM 102 — Storage / utility VM
+#
+# Copy to /etc/pve/qemu-server/102.conf after filling in:
+#   - scsi1–scsi2: real /dev/disk/by-id paths for bays 11–12
+
+agent: 1
+bios: ovmf
+boot: order=scsi0
+cores: 4
+cpu: host
+machine: q35
+memory: 8192
+name: vm102
+numa: 0
+ostype: l26
+scsihw: virtio-scsi-single
+sockets: 1
+
+# OS disk
+scsi0: local-lvm:vm-102-disk-0,cache=writeback,size=32G
+
+# Data drives — bays 11–12
+scsi1: /dev/disk/by-id/PLACEHOLDER_BAY11,size=0
+scsi2: /dev/disk/by-id/PLACEHOLDER_BAY12,size=0
+
+# Network
+net0: virtio=BC:24:11:00:00:66,bridge=vmbr0,firewall=1
+
+# EFI disk
+efidisk0: local-lvm:vm-102-disk-1,efitype=4m,pre-enrolled-keys=0,size=4M