Add towncrier changelog system (#86)

## Summary
- Configure towncrier with custom types (feature, bugfix, infra, doc, misc)
- Build initial v0.1.0 changelog from zk management log entries
- Integrate towncrier into build-blumeops workflow
- Update README to mark Phase 1b complete

## How It Works
1. Add changelog fragments to `docs/changelog.d/` as `<id>.<type>.md`
2. When running build-blumeops workflow, towncrier collects fragments
3. CHANGELOG.md is updated and fragments are removed
4. Changes are committed back to main before docs build

## Testing
- [x] Tested `uvx towncrier build` locally
- [ ] Test workflow execution (after merge)

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

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/86

docs/CHANGELOG.md

@@ -0,0 +1,60 @@
+# Changelog
+
+All notable changes to BlumeOps are documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+
+<!-- towncrier release notes start -->
+
+## [0.1.0] - 2026-02-03
+
+This is a historical release which doesn't actually exist and which aggregates
+the changelogs prior to this date. The work on this blumeops project more or
+less began around Jan 16 2026. To an extent you can find corroborating details
+in the git commit log, but at the beginning (during this initial phase) there
+was a fairly large amount of non-source-controlled work. If a more accurate
+record is needed for this work, you may find it in borgmatic zk backups from
+this time period.
+
+### Features
+
+- Add Grafana Alloy for metrics remote_write to Prometheus
+- Add Alloy DaemonSet for automatic pod log collection and service health probes
+- Set up Borgmatic daily backups to Sifaka NAS with PostgreSQL streaming support
+- Add CloudNativePG PostgreSQL metrics scraping via Tailscale service
+- Add devpi PyPI caching proxy in Kubernetes with custom container image
+- Add Forgejo Actions CI runner in Kubernetes with host mode execution
+- Add Homepage service dashboard with automatic Kubernetes service discovery
+- Add Jellyfin media server with VideoToolbox hardware transcoding on indri
+- Add Kiwix offline Wikipedia server with kiwix-tools on indri
+- Add kube-state-metrics for Kubernetes resource metrics (pods, deployments, etc.)
+- Add Loki log aggregation with 31-day retention and Grafana integration
+- Add Miniflux RSS/Atom feed reader connected to PostgreSQL
+- Add Navidrome music streaming server with NFS storage from Sifaka
+- Add Prometheus metrics collection on indri with Sifaka node_exporter scraping
+- Add TeslaMate vehicle data logger with 18 Grafana dashboards
+- Add Transmission BitTorrent daemon for ZIM archive downloads
+- Add Zot OCI registry as pull-through cache for Docker Hub, GHCR, and Quay
+
+### Bug Fixes
+
+- Build Alloy with CGO for macOS native DNS resolver (fixes Tailscale MagicDNS)
+- Suppress noisy "v1 Endpoints is deprecated" warning from minikube storage-provisioner
+
+### Infrastructure
+
+- Deploy ArgoCD for GitOps continuous delivery with manual sync policy for workloads
+- Set up Caddy reverse proxy for *.ops.eblu.me with ACME DNS-01 TLS via Gandi
+- Deploy CloudNativePG operator and blumeops-pg PostgreSQL cluster in Kubernetes
+- Migrate Grafana from Homebrew to Kubernetes via Helm chart
+- Migrate Kiwix to Kubernetes with torrent-sync sidecar and ZIM watcher CronJob
+- Migrate Loki to Kubernetes StatefulSet with 50Gi PVC
+- Migrate Miniflux from Homebrew to Kubernetes with CloudNativePG database
+- Set up Minikube single-node Kubernetes cluster on indri with Tailscale API access
+- Migrate minikube from podman to docker driver for better stability and NFS support
+- Manage Prometheus configuration via Ansible
+- Migrate Prometheus to Kubernetes StatefulSet with 50Gi PVC
+- Set up Pulumi for Tailnet ACL management with OAuth authentication
+- Migrate Transmission to Kubernetes with NFS storage from Sifaka
+- Migrate Zot registry from Tailscale serve to Caddy reverse proxy at registry.ops.eblu.me
+- Integrate Zot as minikube registry mirror for all image pulls

docs/README.md

@@ -53,17 +53,16 @@ The documentation is being restructured to follow the [Diataxis](https://diataxi
 
 **First release:** [v1.0.0](https://forge.ops.eblu.me/eblume/blumeops/releases/tag/v1.0.0)
 
-### Phase 1b: CD & Hosting (Current)
-- [ ] Build and tag `quartz` container (`mise run container-tag-and-release quartz v1.0.0`)
-- [ ] Create ArgoCD manifests for `quartz` deployment
-- [ ] Add `docs.ops.eblu.me` to Caddy reverse proxy
-- [ ] Configure deployment with `DOCS_RELEASE_URL`:
-  ```
-  https://forge.ops.eblu.me/eblume/blumeops/releases/download/v1.0.0/docs-v1.0.0.tar.gz
-  ```
-- [ ] Test end-to-end: commit -> build -> release -> deploy
-- [ ] Set up `CHANGELOG.md` with [towncrier](https://towncrier.readthedocs.io/) using news fragments from zk cards
-- [ ] Add `docs.ops.eblu.me` link to homepage dashboard
+### Phase 1b: CD & Hosting (Complete)
+- [x] Build and tag `quartz` container (`mise run container-tag-and-release quartz v1.0.0`)
+- [x] Create ArgoCD manifests for `docs` deployment
+- [x] Add `docs.ops.eblu.me` to Caddy reverse proxy
+- [x] Configure deployment with `DOCS_RELEASE_URL`
+- [x] Test end-to-end: commit -> build -> release -> deploy
+- [x] Set up `CHANGELOG.md` with [towncrier](https://towncrier.readthedocs.io/)
+- [x] Add `docs.ops.eblu.me` link to homepage dashboard (via gethomepage.dev annotations)
+
+**Docs URL:** https://docs.ops.eblu.me
 
 ### Phase 2: Tutorials
 Learning-oriented content for getting started.
@@ -112,7 +111,8 @@ Understanding-oriented discussion of concepts and decisions.
 ```
 docs/
 ├── README.md          # This file
-├── CHANGELOG.md       # Documentation changelog (planned)
+├── CHANGELOG.md       # Release changelog (built by towncrier)
+├── changelog.d/       # Towncrier news fragments
 ├── tutorials/         # Learning-oriented (planned)
 ├── how-to/            # Task-oriented (planned)
 ├── reference/         # Information-oriented (planned)
@@ -122,6 +122,18 @@ docs/
     └── ...                  # Service-specific cards and notes
 ```
 
+## Adding Changelog Entries
+
+When making changes, add a news fragment to `docs/changelog.d/`:
+
+```bash
+# Format: <identifier>.<type>.md
+# Types: feature, bugfix, infra, doc, misc
+echo "Add new feature X" > docs/changelog.d/20260203-feature-x.feature.md
+```
+
+Fragments are automatically collected into CHANGELOG.md when a release is built.
+
 ## Viewing the ZK Cards
 
 To view all BlumeOps zettelkasten cards: