semi implemented and features implemented save checkpoint

docs/features/unchecked/web/scanner-ops-settings-ui.md

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+# Scanner Ops Settings UI
+
+## Module
+Web
+
+## Status
+IMPLEMENTED
+
+## Description
+Scanner ops UI with offline kit management (upload/download/verify), baseline list with compare and promote flows, determinism/replay settings, analyzer plugin health dashboard, cache metrics, and scan performance baseline comparison.
+
+## Implementation Details
+- **Feature directory**: `src/Web/StellaOps.Web/src/app/features/scanner-ops/`
+- **Routes**: `scanner-ops.routes.ts`
+- **Components**:
+  - `analyzer-health` (`src/Web/StellaOps.Web/src/app/features/scanner-ops/components/analyzer-health.component.ts`)
+  - `baseline-list` (`src/Web/StellaOps.Web/src/app/features/scanner-ops/components/baseline-list.component.ts`)
+  - `determinism-settings` (`src/Web/StellaOps.Web/src/app/features/scanner-ops/components/determinism-settings.component.ts`)
+  - `offline-kit-list` (`src/Web/StellaOps.Web/src/app/features/scanner-ops/components/offline-kit-list.component.ts`)
+  - `performance-baseline` (`src/Web/StellaOps.Web/src/app/features/scanner-ops/components/performance-baseline.component.ts`)
+  - `scanner-ops` (`src/Web/StellaOps.Web/src/app/features/scanner-ops/scanner-ops.component.ts`)
+- **Source**: SPRINT_20251229_025_FE_scanner_ops_settings_ui
+
+## E2E Test Plan
+- **Setup**:
+  - [ ] Log in with a user that has appropriate permissions
+  - [ ] Navigate to `/ops/scanner`
+  - [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
+- **Core verification**:
+  - [ ] Verify settings form loads with current values pre-populated
+  - [ ] Verify changes can be saved and persist across page reloads
+  - [ ] Verify validation prevents saving invalid configurations
+- **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)