feat(clean-release): complete compliance redesign phases and polish tasks T047-T052

specs/025-clean-release-compliance/quickstart.md

@@ -108,7 +108,28 @@ cd backend && .venv/bin/python3 -m pytest tests/scripts/test_clean_release_tui_v
 4. Compliance run state is visible through both TaskManager and clean-release run records.
 5. Demo namespace and real namespace are visibly isolated.
 
-## 8) Done criteria for planning handoff
+## 8) Validation Results (T049)
+
+### Executed regression subset
+
+Command:
+```bash
+cd backend && DATABASE_URL=sqlite:///./test_quickstart.db AUTH_DATABASE_URL=sqlite:///./test_quickstart_auth.db TASKS_DATABASE_URL=sqlite:///./test_quickstart_tasks.db PYTHONPATH=/home/busya/dev/ss-tools .venv/bin/python3 -m pytest tests/scripts/test_clean_release_cli.py tests/scripts/test_clean_release_tui_v2.py src/api/routes/__tests__/test_clean_release_v2_api.py src/api/routes/__tests__/test_clean_release_v2_release_api.py src/api/routes/__tests__/test_clean_release_legacy_compat.py -q
+```
+
+Result:
+- `15 passed`
+- exit code `0`
+- run completed with non-blocking warnings only (deprecations/config warnings), no functional failures.
+
+### Coverage of quickstart objectives
+
+- Headless lifecycle path validated through CLI smoke tests.
+- Thin-client TUI path validated through dedicated TUI v2 smoke tests.
+- V2 API and legacy compatibility API paths validated through route tests.
+- Legacy `/api/clean-release/checks*` and `/api/clean-release/candidates/prepare` compatibility confirmed.
+
+## 9) Done criteria for planning handoff
 
 - All planning artifacts exist and are internally consistent.
 - State machine, trust boundaries and immutable evidence model are defined.