more updates

plan.md

@@ -310,25 +310,32 @@ The target architecture is:
 - [x] If SQL wins, roll out behind a controlled flag before any default switch.
 
 ### 4. Phase 4: Compatibility Reduction
-- [ ] Keep legacy outputs controlled by `snapshot_table_compat_mode`.
-- [ ] Validate canonical path correctness before disabling scheduled legacy hourly table creation.
-- [ ] Preserve explicit compatibility rebuild/backfill commands from canonical sources.
-- [ ] Remove obsolete or duplicate styling rules after full UI migration completion.
+- [x] Keep legacy outputs controlled by `snapshot_table_compat_mode`.
+  - Verified by compatibility-mode integration coverage (`TestSnapshotTableCompatModeSettingControlsTaskBehaviorFlag`) and capture-path mode gating in `inventorySnapshots`.
+- [x] Validate canonical path correctness before disabling scheduled legacy hourly table creation.
+  - Covered by parity/integration/compatibility tests plus baseline-vs-post-change decision record (`phase-metrics-2026-04-20.md`).
+- [x] Preserve explicit compatibility rebuild/backfill commands from canonical sources.
+  - Preserved through existing admin workflows (`/api/snapshots/aggregate`, `/api/snapshots/repair`, `/api/snapshots/repair/all`, `/api/snapshots/regenerate-hourly-reports`, `/api/vcenters/cache/rebuild`, `-backfill-vcenter-cache`).
+- [x] Remove obsolete or duplicate styling rules after full UI migration completion.
+  - Removed unused selectors from shared UI stylesheet (`.web2-button-group*`, `.web2-list li`) in `dist/assets/css/web3.css`; router UI asset tests remain passing.
 
 ### 5. Validation and Quality Gates
-- [ ] Add golden-result tests for daily output parity (old vs new path).
-- [ ] Add golden-result tests for monthly output parity (old vs new path).
+- [x] Add golden-result tests for daily output parity (old vs new path).
+- [x] Add golden-result tests for monthly output parity (old vs new path).
 - [x] Add lifecycle edge-case coverage (partial presence, missing create times, deletion refinement, pool and resource changes).
 - [x] Add integration tests for canonical write/read paths and totals cache correctness.
 - [x] Add compatibility tests for legacy table generation, reports, and rebuild flows.
-- [ ] Add UI validation for token usage, responsive behavior, focus/contrast/keyboard accessibility, and auth guidance accuracy.
-- [ ] Compare baseline vs post-change metrics after each phase and record pass/fail decisions.
+- [x] Add UI validation for token usage, responsive behavior, focus/contrast/keyboard accessibility, and auth guidance accuracy.
+  - Covered by router tests validating shared CSS token/responsive/focus rules and page-level auth/keyboard guidance: `TestSharedStylesExposeThemeTokensAndResponsiveAccessibilityRules`, `TestDashboardAuthGuidanceMatchesRouteProtection`, and `TestVmTraceFormUsesLabelledInputsAndKeyboardFriendlyControls`.
+- [x] Compare baseline vs post-change metrics after each phase and record pass/fail decisions.
+  - Evidence and gate outcomes captured in `phase-metrics-2026-04-20.md` (baseline delta table + pass/fail decisions + benchmark snapshot).
 
 ### 6. Rollout and Documentation
-- [ ] Update operator docs for new settings and default behavior.
-- [ ] Document compatibility-mode lifecycle and criteria to disable legacy table generation.
-- [ ] Document benchmark method/results and default-path decision record (Go vs SQL).
-- [ ] Publish a short migration runbook for staged rollout, rollback triggers, and repair workflows.
+- [x] Update operator docs for new settings and default behavior.
+- [x] Document compatibility-mode lifecycle and criteria to disable legacy table generation.
+- [x] Document benchmark method/results and default-path decision record (Go vs SQL).
+- [x] Publish a short migration runbook for staged rollout, rollback triggers, and repair workflows.
+  - Completed in `README.md` (benchmark decision record, compatibility lifecycle, and migration runbook sections).
 
 ## Test Plan