save checkpoint: save features

docs/features/checked/web/mi3-latency-idle-load-patterns.md

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+# MI3 - Latency/Idle/Load Patterns (Skeletons, Progress, Offline Banners)
+
+## Module
+Web
+
+## Status
+VERIFIED
+
+## Description
+Skeleton loading placeholders with multiple variants, offline banner with retry button and connection status, and offline mode service for detecting/managing connectivity state.
+
+## Implementation Details
+- **Feature directory**: `src/Web/StellaOps.Web/src/app/features/core/`
+- **Components**:
+  - `extension-slot` (`src/Web/StellaOps.Web/src/app/core/plugins/extension-slots/extension-slot.component.ts`)
+- **Services**:
+  - `evidence-panel-metrics` (`src/Web/StellaOps.Web/src/app/core/analytics/evidence-panel-metrics.service.ts`)
+  - `gateway-metrics` (`src/Web/StellaOps.Web/src/app/core/api/gateway-metrics.service.ts`)
+  - `policy-interop` (`src/Web/StellaOps.Web/src/app/core/api/policy-interop.service.ts`)
+  - `reachability-integration` (`src/Web/StellaOps.Web/src/app/core/api/reachability-integration.service.ts`)
+  - `vuln-export-orchestrator` (`src/Web/StellaOps.Web/src/app/core/api/vuln-export-orchestrator.service.ts`)
+  - `abac` (`src/Web/StellaOps.Web/src/app/core/auth/abac.service.ts`)
+  - `auth-storage` (`src/Web/StellaOps.Web/src/app/core/auth/auth-storage.service.ts`)
+  - `auth` (`src/Web/StellaOps.Web/src/app/core/auth/auth.service.ts`)
+  - `authority-auth` (`src/Web/StellaOps.Web/src/app/core/auth/authority-auth.service.ts`)
+  - `dpop` (`src/Web/StellaOps.Web/src/app/core/auth/dpop/dpop.service.ts`)
+- **Models**:
+  - `src/Web/StellaOps.Web/src/app/core/api/advisories.models.ts`
+  - `src/Web/StellaOps.Web/src/app/core/api/advisory-ai.models.ts`
+  - `src/Web/StellaOps.Web/src/app/core/api/ai-runs.models.ts`
+  - `src/Web/StellaOps.Web/src/app/core/api/analytics.models.ts`
+  - `src/Web/StellaOps.Web/src/app/core/api/aoc.models.ts`
+- **Source**: Feature matrix scan
+
+## 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/mi3-latency-idle-load-patterns/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): `2026-02-11T08:37:58.7612207Z`