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feat(prometheus-direct-charting): slice 3 — remove grafana + config rewrite + changelog

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Remove the entire Grafana surface: integrations/grafana.py, GrafanaWidgetSource
(+ _fetch_chart, now redundant since prometheus chart exists), GrafanaLinkWidget,
LinksTab, get_grafana_status endpoint, useGrafanaStatus hook, GrafanaStatus type,
fetchGrafanaStatus client fn, registry/nav/tab entries (FE+BE). Rewrite
config.yaml thin-dashboard rule to match reality (recharts is sanctioned for
Prometheus-backed series). CHANGELOG migration note added.

Backend: 293 pytest pass, ruff clean. Frontend: build+lint green (0 errors).
SC-115/116 grep-clean (only prometheus_range.py migration comments + Dashboard.test
shortcut fixture remain — both spec-allowed).
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Developer
2026-07-08 22:33:44 +00:00
parent 65bae95e3c
commit 67ca0fc3bc
27 changed files with 134 additions and 937 deletions
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openspec/config.yaml
+1 -1
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@@ -5,7 +5,7 @@ context: |
Frontend stack: React 18, TypeScript, Vite, TanStack Query, Tailwind CSS v4 (CSS @theme config in src/index.css), shadcn/ui (Radix primitives), lucide-react, react-router-dom, react-oidc-context.
MIGRATION IN PROGRESS: MUI v9 (@mui/material, @mui/icons-material, @mui/x-data-grid, @emotion/react, @emotion/styled) -> shadcn/ui + Tailwind + lucide-react. The shell (frontend/src/App.tsx) and frontend/src/components/ObservabilityPage.tsx are already migrated and are the style targets. @mui/x-data-grid (pages/Media.tsx, pages/FileBrowser.impl.tsx) migrates to TanStack Table (@tanstack/react-table) with shadcn table styling.
DESIGN TOKENS: src/index.css already defines a full Tailwind v4 @theme token system (light + .dark), Inter font, primary #4f8cff, radius 0.625rem. tailwind.config.cjs is minimal. theme.ts is a no-op shim, safe to delete.
OBSERVABILITY MODEL: Manage is a THIN dashboard. Charts/metrics/logs live in EXTERNAL, decoupled Grafana. In-app surfaces show Alertmanager alerts + Prometheus target health + Grafana deep-links (kiosk iframe). Do NOT re-implement charting in-app. No recharts/d3 is in use.
OBSERVABILITY MODEL: Manage renders Prometheus-backed metrics directly via recharts (line charts, gauges, mean widgets) querying Prometheus /api/v1/query_range. Alertmanager alerts + Prometheus target health are shown in-app. Grafana is no longer integrated.
rules:
proposal: