docs: update CLAUDE.md to reflect API proxy data source

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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2026-02-06 21:10:00 -05:00
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## Project Overview
Headlamp plugin that surfaces Fairwinds Polaris audit results inside the Headlamp UI. Reads from `ConfigMap/polaris-dashboard` in the `polaris` namespace (key: `dashboard.json`). Target Headlamp ≥ v0.26.
Headlamp plugin that surfaces Fairwinds Polaris audit results inside the Headlamp UI. Queries the Polaris dashboard API via the Kubernetes service proxy (`/api/v1/namespaces/polaris/services/polaris-dashboard:80/proxy/results.json`). Target Headlamp ≥ v0.26.
## Build & Development Commands
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└── PolarisView.tsx # Main page: score badge, check summary, cluster info, error states, refresh interval selector
```
Single sidebar page at `/polaris`. Data is cached in React state and refreshed on a user-configurable interval (stored in localStorage under `polaris-plugin-refresh-interval`, default 5 minutes). The `usePolarisData` hook wraps `ConfigMap.useGet` with caching so stale data is shown while refreshing.
Single sidebar page at `/polaris`. Data is fetched via `ApiProxy.request` to the Polaris dashboard service proxy and refreshed on a user-configurable interval (stored in localStorage under `polaris-plugin-refresh-interval`, default 5 minutes). Score is computed from result counts (pass/total).
## Key Constraints
- **Data source**: `ConfigMap/polaris-dashboard` in `polaris` namespace, key `dashboard.json`. No CRDs, no external API calls, no cluster write operations.
- **Data source**: Polaris dashboard API via K8s service proxy. Requires Polaris deployed in the `polaris` namespace with a `polaris-dashboard` service. No CRDs, no cluster write operations.
- **UI components**: Use only Headlamp-provided components (`@kinvolk/headlamp-plugin/lib/CommonComponents`). Do not import raw MUI packages. No custom theming.
- **Error handling**: Must handle 403 (RBAC denied), 404 (Polaris not installed), malformed JSON, and loading states with distinct visual states.
- **TypeScript strictness**: No `any`, no implicit `unknown` casting, no dead code, no unused imports.