feat: initial release of headlamp-rook-ceph-plugin v0.1.0

Headlamp plugin for Rook-Ceph cluster visibility.

Pages:
- Overview dashboard: CephCluster health, capacity bar, resource counts
  (block pools, filesystems, object stores, PVs, PVCs), daemon pod
  health summary, non-Bound PVC alerts
- Block Pools: CephBlockPool table with replication, failure domain,
  mirroring; slide-in detail panel
- Pods: all Rook-Ceph daemon pods grouped by role with ready/total counts

Native Headlamp integrations:
- StorageClass table: Rook Type, Pool, Cluster ID columns
- PV table: Rook Type, Pool columns
- PVC detail injection: driver, type, pool, volume handle
- PV detail injection: CSI volume attributes
- Pod detail injection: Ceph daemon role badge
- App bar badge: cluster health (HEALTH_OK/WARN/ERR), color-coded

API / architecture:
- src/api/k8s.ts: types + filters for ceph.rook.io/v1 CRDs; handles
  both default rook-ceph.* and custom-namespace provisioner strings
- src/api/RookCephDataContext.tsx: shared context provider; fetches
  CephCluster, CephBlockPool, CephFilesystem, CephObjectStore CRDs
  plus daemon pods via label selectors
- 37 unit tests (vitest + @testing-library/react)
- TypeScript strict mode, zero any types
- CI + release GitHub Actions workflows

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

CLAUDE.md

@@ -0,0 +1,88 @@
+# headlamp-rook-ceph-plugin
+
+Headlamp plugin for Rook-Ceph cluster visibility.
+
+## Project
+
+- **Plugin name**: `headlamp-rook-ceph-plugin`
+- **Rook-Ceph API group**: `ceph.rook.io/v1`
+- **Default namespace**: `rook-ceph`
+- **RBD provisioner**: `rook-ceph.rbd.csi.ceph.com`
+- **CephFS provisioner**: `rook-ceph.cephfs.csi.ceph.com`
+- **Reference plugin**: `../headlamp-tns-csi-plugin`
+
+## Commands
+
+```bash
+npm start          # dev server with hot reload
+npm run build      # production build
+npm run package    # package for headlamp
+npm run tsc        # TypeScript type check (no emit)
+npm run lint       # ESLint
+npm test           # vitest run
+npm run test:watch # vitest watch mode
+```
+
+## Architecture
+
+```
+src/
+├── index.tsx                          # Plugin entry: registerRoute, registerSidebarEntry, etc.
+├── api/
+│   ├── k8s.ts                         # Types + filtering helpers (ceph.rook.io)
+│   └── RookCephDataContext.tsx         # Shared React context provider
+└── components/
+    ├── OverviewPage.tsx
+    ├── BlockPoolsPage.tsx
+    ├── StorageClassesPage.tsx
+    ├── VolumesPage.tsx
+    ├── PodsPage.tsx
+    ├── ClusterStatusCard.tsx
+    ├── AppBarClusterBadge.tsx
+    ├── PVCDetailSection.tsx            # Injected into Headlamp PVC detail view
+    ├── PVDetailSection.tsx             # Injected into Headlamp PV detail view
+    ├── CephPodDetailSection.tsx        # Injected into Headlamp Pod detail view
+    └── integrations/
+        └── StorageClassColumns.tsx     # Column processors for SC + PV tables
+```
+
+## Key constants (src/api/k8s.ts)
+
+- Namespace: `rook-ceph`
+- API group: `ceph.rook.io/v1`
+- RBD provisioner: `rook-ceph.rbd.csi.ceph.com`
+- CephFS provisioner: `rook-ceph.cephfs.csi.ceph.com`
+- Custom namespace provisioners: any string ending in `.rbd.csi.ceph.com` or `.cephfs.csi.ceph.com`
+- Pod selectors: `app=rook-ceph-operator`, `app=rook-ceph-mon`, `app=rook-ceph-osd`, `app=rook-ceph-mgr`, `app=csi-rbdplugin-provisioner`, `app=csi-cephfsplugin-provisioner`
+
+## Code conventions
+
+- Functional React components only — no class components
+- All imports from `@kinvolk/headlamp-plugin/lib` and `@kinvolk/headlamp-plugin/lib/CommonComponents`
+- No additional UI libraries (no MUI direct imports, no Ant Design, etc.)
+- TypeScript strict mode — no `any`, use `unknown` + type guards at API boundaries
+- Context provider (`RookCephDataProvider`) wraps each route component in `index.tsx`
+- Tests: vitest + @testing-library/react, mock with `vi.mock('@kinvolk/headlamp-plugin/lib', ...)`
+
+## Testing
+
+All tests must pass before committing:
+
+```bash
+npm test        # tests across test files
+npm run tsc     # must exit 0
+```
+
+Mock pattern for headlamp APIs:
+```typescript
+vi.mock('@kinvolk/headlamp-plugin/lib', () => ({
+  ApiProxy: { request: vi.fn().mockResolvedValue({ items: [] }) },
+  K8s: {
+    ResourceClasses: {
+      StorageClass: { useList: vi.fn(() => [[], null]) },
+      PersistentVolume: { useList: vi.fn(() => [[], null]) },
+      PersistentVolumeClaim: { useList: vi.fn(() => [[], null]) },
+    },
+  },
+}));
+```