51 lines
2.7 KiB
Markdown
51 lines
2.7 KiB
Markdown
# Causal Timeline with Critical Path and Event Detail
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## Module
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Web
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## Status
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VERIFIED
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## Description
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Full-featured causal timeline view with lane-based event visualization (D3.js, one lane per service), critical path highlighting, event detail panel, evidence links, timeline export, filtering, HLC range picker, and forensic export button. Supports correlation ID-based navigation for tracing release pipeline events. (Merged with Timeline UI Component from Phase 2 (none) section.)
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## Implementation Details
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- **Feature directory**: `src/Web/StellaOps.Web/src/app/features/timeline/`
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- **Routes**: `timeline.routes.ts`
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- **Components**:
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- `causal-lanes` (`src/Web/StellaOps.Web/src/app/features/timeline/components/causal-lanes/causal-lanes.component.ts`)
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- `critical-path` (`src/Web/StellaOps.Web/src/app/features/timeline/components/critical-path/critical-path.component.ts`)
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- `event-detail-panel` (`src/Web/StellaOps.Web/src/app/features/timeline/components/event-detail-panel/event-detail-panel.component.ts`)
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- `evidence-links` (`src/Web/StellaOps.Web/src/app/features/timeline/components/evidence-links/evidence-links.component.ts`)
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- `export-button` (`src/Web/StellaOps.Web/src/app/features/timeline/components/export-button/export-button.component.ts`)
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- `timeline-filter` (`src/Web/StellaOps.Web/src/app/features/timeline/components/timeline-filter/timeline-filter.component.ts`)
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- `timeline-page` (`src/Web/StellaOps.Web/src/app/features/timeline/pages/timeline-page/timeline-page.component.ts`)
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- **Services**:
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- `timeline` (`src/Web/StellaOps.Web/src/app/features/timeline/services/timeline.service.ts`)
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- **Models**:
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- `src/Web/StellaOps.Web/src/app/features/timeline/models/timeline.models.ts`
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- **Source**: Feature matrix scan
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## E2E Test Plan
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- **Setup**:
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- [ ] Log in with a user that has appropriate permissions
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- [ ] Navigate to the relevant page/section where this feature appears
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- [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
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- **Core verification**:
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- [ ] Verify the component renders correctly with sample data
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- [ ] Verify interactive elements respond to user input
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- [ ] Verify data is fetched and displayed from the correct API endpoints
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- **Edge cases**:
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- [ ] Verify graceful handling when backend API is unavailable (error state)
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- [ ] Verify responsive layout at different viewport sizes
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- [ ] Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)
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## Verification
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- Date: 2026-02-10
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- Run artifacts: docs/qa/feature-checks/runs/web/causal-timeline-with-critical-path-and-event-detail/run-001/
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- Tier results:
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- tier0-source-check.json: pass
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- tier1-build-check.json: pass
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- tier2-e2e-check.json: pass
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