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docs/features/checked/web/determinization-ui-components.md

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+# Determinization UI Components (Observation State Chip + Uncertainty Indicator)
+
+## Module
+Web
+
+## Status
+VERIFIED
+
+## Description
+Angular UI components for CVE observation state management: "Unknown (auto-tracking)" chip with next review ETA, uncertainty tier visualization, guardrails status/monitoring badges, decay progress indicator, observation details panel, and observation review queue for pending items.
+
+## Implementation Details
+- **Feature directory**: `src/Web/StellaOps.Web/src/app/shared/components/determinization/`
+- **Components**:
+  - `decay-progress` (`src/Web/StellaOps.Web/src/app/shared/components/determinization/decay-progress/decay-progress.component.ts`)
+  - `guardrails-badge` (`src/Web/StellaOps.Web/src/app/shared/components/determinization/guardrails-badge/guardrails-badge.component.ts`)
+  - `observation-state-chip` (`src/Web/StellaOps.Web/src/app/shared/components/determinization/observation-state-chip/observation-state-chip.component.ts`)
+  - `uncertainty-indicator` (`src/Web/StellaOps.Web/src/app/shared/components/determinization/uncertainty-indicator/uncertainty-indicator.component.ts`)
+- **Source**: SPRINT_20260106_001_005_FE_determinization_ui.md
+
+## E2E Test Plan
+- **Setup**:
+  - [ ] Log in with a user that has appropriate permissions
+  - [ ] Navigate to the relevant page/section where this feature appears
+  - [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
+- **Core verification**:
+  - [ ] Verify the component renders correctly with sample data
+  - [ ] Verify interactive elements respond to user input
+  - [ ] Verify data is fetched and displayed from the correct API endpoints
+- **Edge cases**:
+  - [ ] Verify graceful handling when backend API is unavailable (error state)
+  - [ ] Verify responsive layout at different viewport sizes
+  - [ ] Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)
+
+## Verification
+- Run: `docs/qa/feature-checks/runs/web/determinization-ui-components/run-001/`
+- Tier 0 (source): pass (`tier0-source-check.json`)
+- Tier 1 (build/tests): pass (`tier1-build-check.json`)
+- Tier 2 (behavior): pass (`tier2-e2e-check.json`)
+- Verified on (UTC): 2026-02-10