feat(greenhouse): new Clusters dashboard

[guoda-puidokaite]

Summary

Changes Made

• Added Clusters overview according to ACs that allows navigation to Cluster Detail page and from there, Plugin Instance page

Other agreed on ACs:

• Added Cluster Type and Region fields and allowed to filter by them
• No ‘Reconcile’ button needed

Design guidelines:
https://www.figma.com/design/xsRjypqDB8lGT8LsrxIFKs/%F0%9F%AB%9F--Greenhouse-UX-work?node-id=984-5344&p=f&t=R89RR3K513x3o3rM-0

Related Issues

Testing Instructions

1. pnpm i
2. pnpm TASK

Checklist

• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.
• I have made corresponding changes to the documentation (if applicable).
• My changes generate no new warnings or errors.
• I have created a changeset for my changes.

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[Copilot]

Pull request overview

Adds a new Greenhouse “Clusters” dashboard flow under /admin/clusters, including an overview grid with filtering and a new cluster detail page that links into plugin-instance details.

Changes:

• Replaced the legacy /admin/clusters route with nested routes for clusters list and cluster detail (/admin/clusters/$clusterName).
• Added new UI components for clusters overview (filters + grid) and cluster detail (overview/YAML + plugin instances).
• Added new API helpers and types for fetching clusters and plugins-by-cluster, plus shared utility updates.

Reviewed changes

Copilot reviewed 29 out of 30 changed files in this pull request and generated 28 comments.

Show a summary per file

File	Description
apps/greenhouse/src/routeTree.gen.ts	Updates generated route tree to reflect new nested clusters routes.
apps/greenhouse/src/routes/admin/clusters/route.tsx	Adds parent “Clusters” route with breadcrumb + Outlet.
apps/greenhouse/src/routes/admin/clusters/index.tsx	Adds clusters index route with search validation and default filter redirect.
apps/greenhouse/src/routes/admin/clusters/$clusterName/route.tsx	Adds cluster-name route with crumb label based on param.
apps/greenhouse/src/routes/admin/clusters/$clusterName/index.tsx	Adds cluster detail index route to render ClusterDetail.
apps/greenhouse/src/routes/admin/clusters.tsx	Removes legacy clusters route implementation.
apps/greenhouse/src/components/admin/utils.ts	Expands readiness helpers to clusters and adds formatAge.
apps/greenhouse/src/components/admin/types/schema.d.ts	Updates Cluster schema typing (note: file is auto-generated).
apps/greenhouse/src/components/admin/types/k8sTypes.ts	Adds Cluster type alias alongside existing types.
apps/greenhouse/src/components/admin/Layout/Breadcrumb.test.tsx	Updates breadcrumb test for nested routes (currently mismatched path).
apps/greenhouse/src/components/admin/constants.ts	Adds cluster-related label keys and filter IDs.
apps/greenhouse/src/components/admin/Clusters/index.tsx	Implements clusters overview page (counts, refresh, filters, grid).
apps/greenhouse/src/components/admin/Clusters/ClustersGrid/index.tsx	Adds clusters overview data grid header + suspense/error handling.
apps/greenhouse/src/components/admin/Clusters/ClustersGrid/index.test.tsx	Adds tests for clusters grid rendering and error state.
apps/greenhouse/src/components/admin/Clusters/ClustersGrid/DataRows/index.tsx	Adds suspense data rows fetching clusters and navigating to detail.
apps/greenhouse/src/components/admin/Clusters/ClustersFilters.tsx	Adds filter UI (select + chips + search) for clusters.
apps/greenhouse/src/components/admin/ClusterDetail/Overview/PluginInstances.tsx	Adds cluster-scoped plugin instances table with navigation to plugin instance detail.
apps/greenhouse/src/components/admin/ClusterDetail/Overview/PluginInstances.test.tsx	Adds tests for plugin instances view (currently mismatched route/expectations).
apps/greenhouse/src/components/admin/ClusterDetail/Overview/index.tsx	Adds cluster detail “Overview” composition (conditions/details/plugins).
apps/greenhouse/src/components/admin/ClusterDetail/Overview/Details.tsx	Adds cluster detail “Details” panel, including age + node status.
apps/greenhouse/src/components/admin/ClusterDetail/Overview/Details.test.tsx	Adds tests for Details (currently mismatched props/types/expectations).
apps/greenhouse/src/components/admin/ClusterDetail/Overview/Conditions.tsx	Adds cluster readiness conditions section.
apps/greenhouse/src/components/admin/ClusterDetail/Overview/Conditions.test.tsx	Adds tests for Conditions (currently mismatched props/types).
apps/greenhouse/src/components/admin/ClusterDetail/index.tsx	Adds cluster detail page with tabs and data fetching.
apps/greenhouse/src/components/admin/ClusterDetail/index.test.tsx	Adds tests for cluster detail page (currently imports/route mismatches).
apps/greenhouse/src/components/admin/api/plugins/fetchPluginsByCluster.ts	Adds API helper to fetch plugins filtered by cluster label.
apps/greenhouse/src/components/admin/api/clusters/fetchClustersFilters.ts	Adds API helper to derive filter values from clusters list.
apps/greenhouse/src/components/admin/api/clusters/fetchClusters.ts	Adds API helper to fetch clusters and apply client-side filtering/sorting.
apps/greenhouse/src/components/admin/api/clusters/fetchCluster.ts	Adds API helper to fetch a single cluster by name.
apps/greenhouse/src/components/admin/mocks/pluginPresets.ts	Refactors mocks to provide cluster mock data (file name now misleading).