docs: add full homelab documentation structure

docs/servers/PLAUSIBLEDENABILITY.md

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+# PlausibleDeniability
+
+Primary Docker host running all production workloads.
+
+## Specs
+- **OS:** TrueNAS Scale 25.10.2.1
+- **CPU:** Ryzen 9 3950X
+- **RAM:** 32GB
+- **GPU:** Nvidia RTX 2080 Ti (11GB VRAM)
+- **UPS:** None
+
+## Storage Tiers
+
+| Tier | Mount | Use for |
+|------|-------|---------|
+| Local SSD (Crucial MX500 500GB) | `/mnt/docker-ssd` | Docker root, databases, write-heavy appdata, GPU/model caches |
+| TrueNAS pool (tank, 2-drive ZFS mirror ~3.5TB) | `/mnt/tank` | General appdata, configs, backups, downloads |
+| Unraid NFS | `/mnt/unraid` | Media libraries, Immich media |
+
+## Docker Root
+`/mnt/docker-ssd/docker/docker-data`
+
+## Compose Repo
+`/mnt/docker-ssd/docker/compose`
+
+## Key Docker Networks
+- `ix-databases_shared-databases` — shared DB access network (created by databases stack)
+- `pangolin` — reverse proxy exposure network (created by newt)
+
+## GPU Usage
+RTX 2080 Ti used by:
+- Plex (hardware transcoding)
+- immich-ml (CUDA face recognition)
+- ollama (LLM inference)
+
+Recommended models for 11GB VRAM:
+| Model | VRAM | Best for |
+|-------|------|---------|
+| `qwen2.5:14b` | ~8GB | General use, coding, reasoning |
+| `qwen2.5-coder:7b` | ~5GB | Code tasks |
+| `deepseek-r1:8b` | ~5GB | Math, logic |
+| `phi4` | ~8GB | Analytical tasks |
+
+## Remote Access
+- Pangolin VPS + Newt for external services
+- SSH from Windows 11
+
+## NFS Exports to Other Servers
+- `data` share → PD at `/mnt/unraid/data`
+- `immich` share → PD at `/mnt/unraid/immich`
+
+## Known Issues
+- immich-ml intermittently unhealthy — investigate GPU/CUDA health
+- docker-ssd has no redundancy — single point of failure for all appdata
+- No off-site backup
+
+## Pending
+- Deploy: dispatcharr, gotify, bytestash, kima-hub, n8n, qdrant, paperless-ngx
+- Add Pangolin resource + DNS for `ai.paccoco.com`
+- Install fresh editor