docs: module dossier + install/quickstart sync for truthful cutover sprints

- API_CLI_REFERENCE.md, INSTALL_GUIDE.md, quickstart.md, architecture/integrations.md, dev/DEV_ENVIRONMENT_SETUP.md, integrations/LOCAL_SERVICES.md: reflect real-service wiring.
- docs/modules/**: module dossier updates across the modules touched by SPRINT_20260415_001..007 + SPRINT_20260416_003..017 + SPRINT_20260417_018..024 + SPRINT_20260418_025 + SPRINT_20260419_026.
- docs/features/checked/web/**: update feature notes where UI changed.
- docs/qa/feature-checks/runs/web/evidence-presentation-ux/: QA evidence artifacts.
- docs/setup/**, docs/technical/**: align with setup wizard contracts.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/features/checked/web/findings-compare-baseline-availability-ui.md

@@ -35,7 +35,7 @@ The embedded compare surface on `/security/findings` now treats `active-scan` as
 - Notes:
   - Focused unit coverage passed: `1/1` tests in `findings-list.audit-export.behavior.spec.ts`.
   - Deterministic Playwright passed: `2/2` scenarios for no-baseline diff behavior and detail-mode audit-export removal.
-  - Live authenticated replay on `https://stella-ops.local/security/findings?tenant=demo-prod&regions=us-east&environments=stage&timeWindow=7d` showed `Active scan`, rendered `No baseline recommendations available for this scan`, kept `Export` disabled, and issued no `/api/compare/delta` request without a selected baseline.
+  - Live authenticated replay on `https://stella-ops.local/security/findings?tenant=default&regions=us-east&environments=stage&timeWindow=7d` showed `Active scan`, rendered `No baseline recommendations available for this scan`, kept `Export` disabled, and issued no `/api/compare/delta` request without a selected baseline.
   - Production build passed; existing bundle-budget warnings remain unchanged from the baseline.
 - Verified on (UTC): 2026-03-08T13:04:26Z