Fix services-check and update docs for Frigate migration to ringtail (#218)
## Summary
- Move mosquitto, ntfy, frigate, frigate-notify pod checks from `minikube-indri` to `k3s-ringtail` context in `services-check`
- Add `nvidia-device-plugin` pod check for ringtail k3s
- Rename "Kubernetes pods" section to "Indri minikube pods" for clarity
- Update 8 documentation files to reflect the migration completed in PRs #216/#217
## Files Changed
| File | Change |
|------|--------|
| `mise-tasks/services-check` | Move 4 pod checks to k3s-ringtail, add nvidia-device-plugin |
| `docs/reference/services/frigate.md` | Image→tensorrt, detector→ONNX/CUDA, shm→512Mi |
| `docs/reference/infrastructure/ringtail.md` | List actual k3s workloads |
| `docs/reference/infrastructure/indri.md` | Note frigate migration |
| `docs/explanation/architecture.md` | Add ringtail to diagram + compute layer |
| `docs/reference/kubernetes/cluster.md` | Note two clusters, add k3s section |
| `docs/reference/reference.md` | Update frigate/ntfy location |
| `docs/how-to/plans/completed/operationalize-reolink-camera.md` | Add post-completion migration note |
| `CLAUDE.md` | Add k3s-ringtail context guidance |
## Test plan
- [ ] `mise run services-check` — all checks pass
- [ ] Review each doc for accuracy against deployed state
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/218
Erich Blume
291fff345c