feat(dashboards): add empty-state graphic for the dashboard page

[TheodoreSpeaks]

Summary

• Added a drawn empty-state graphic for the dashboard page — a stat tile, a donut tile, and a trend panel fading off the corner — matching the tables/files/knowledge/logs set (same hairline, ink mixes, and corner fade)
• DashboardEmptyState lives with the other resource empty states and replaces the bare EmptyState in dashboard-resource.tsx; copy unchanged

Type of Change

• New feature

Testing

• Rendered the real component in light and dark next to the existing empty states
• bun run lint, check:audits (58/58), block-registry check, docs-manifest:check
• components/dashboards tests pass; root bun run test shows unrelated local failures only (env-dependent rate-limit/timeout tests and load timeouts) — type-check left to CI

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing (new tests pass the test-audit authoring gate)
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

🤖 Generated with Claude Code

https://claude.ai/code/session_01J7A6CWpREr1jiPAdWyTQbA

[vercel]

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Oct 7, 2026 2:49am UTC

[cubic-dev-ai]

No issues found across 3 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Turn on auto-fix | Re-trigger cubic}

[greptile-apps]

Confidence Score: 4/5

[Low risk] Adds a custom empty-state graphic for dashboards.

No behavioral failure was found, but the props-interface and constant-array requirements must be satisfied before merging.

Findings

1.  Components lack required props interfaces ▶
2.  Fixed chart points remain mutable ▶

Summary

Adds a dashboard illustration with a stat tile, donut chart, and trend panel.

• Uses DashboardEmptyState in the existing empty branch without changing the copy.
• Preserves loading, error, preview, and feature-access behavior.
• Two repository requirements need attention: props interfaces and readonly chart constants.

_{Reviews (1) · Last reviewed commit: "feat(dashboards): add empty-state graphi..." · Reviewed by Greptile}

[greptile-apps]

Components lack required props interfaces

DashboardEmptyState and DashboardGraphic omit props interfaces. The component guide requires a props interface for every component. Add named interfaces for both components to satisfy this repository requirement before merging.

Context Used: Component patterns and structure for React components (source)

Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!

[greptile-apps]

Fixed chart points remain mutable

SPARKLINE and TREND are fixed drawing data but use mutable Point[] arrays. CLAUDE.md requires as const for constant arrays. Mark both arrays as const and let toPath accept a readonly array. This prevents accidental coordinate changes and satisfies the repository requirement before merging.

Context Used: CLAUDE.md (source)

Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!