Phase 2: Add Reference section with 24 technical reference cards (#88)

## Summary
- Create `docs/reference/` section with 24 technical reference cards
- Services (16): alloy, argocd, borgmatic, 1password, forgejo, grafana, jellyfin, kiwix, loki, miniflux, navidrome, postgresql, prometheus, teslamate, transmission, zot
- Infrastructure (3): hosts, tailscale, routing
- Kubernetes (2): cluster, apps
- Storage (2): sifaka, backups
- Update README to mark Phase 2 as complete
- Add towncrier changelog fragment

## Deployment and Testing
- [ ] Build docs locally to verify wiki-links resolve
- [ ] Deploy via ArgoCD and verify at docs.ops.eblu.me/reference/

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/88

docs/reference/infrastructure/indri.md

@@ -0,0 +1,38 @@
+---
+title: Indri
+tags:
+  - infrastructure
+  - host
+---
+
+# Indri
+
+Primary BlumeOps server. Mac Mini M1 (2020).
+
+## Specifications
+
+| Property | Value |
+|----------|-------|
+| **Model** | Mac mini M1, 2020 (Macmini9,1) |
+| **Storage** | 2TB internal SSD |
+| **macOS** | 15.7.3 (Sequoia) |
+| **Tailscale IP** | 100.98.163.89 |
+| **Tailscale Tag** | `tag:homelab` |
+
+## Services Hosted
+
+**Native (via Ansible):**
+- [[services/forgejo|Forgejo]] - Git forge
+- [[services/zot|Zot]] - Container registry
+- [[services/jellyfin|Jellyfin]] - Media server
+- [[services/borgmatic|Borgmatic]] - Backup system
+- [[services/alloy|Alloy]] - Metrics/logs collector
+- Caddy - Reverse proxy for `*.ops.eblu.me`
+
+**Kubernetes (via minikube):**
+- [[kubernetes/apps|All k8s applications]]
+
+## Related
+
+- [[infrastructure/routing|Routing]] - Port mappings
+- [[kubernetes/cluster|Cluster]] - Minikube details