v19.0 Phase 1 Execution Handoff (2026-03-09)

This handoff isolates the remaining v19 execution tasks that should run after v22 Gate 0 prerequisites are satisfied.

Related:

1. v19.0 User Execution Guide
2. Roadmap
3. v22.0 Approval Checklist
4. v22.0 Phase 0 Baseline Report (2026-03-09)
5. E2E Automation Baseline (2026-03-12)

Start Conditions

1. Step 1 v22 approvals are locked.
2. No unresolved redline conflicts for current conditional integration mode.
3. Baseline report is populated for M1/M3 (both NULL from zero baseline-window events) with execution metadata recorded.
4. robots.txt is already implemented via app/robots.ts; remaining blockers are execution-focused (QA + E2E + data review).

Remaining v19 Phase 1 Tasks

1. Production environment audit (required).
2. Critical user journey testing (6 scenarios, required).
3. Top-20 service data quality final review (required).
4. Keep the default E2E suite skip-free and run the dedicated opt-in browser suites when their environments are available.

Suggested Execution Order

1. Run environment validation and QA scripts:
2. npm run validate:env
3. npm run qa:prelaunch
4. Execute manual critical user journeys and record pass/fail evidence.
5. Execute top-20 data quality review checklist and record findings.
6. Run the dedicated optional browser suites when feasible:
7. npm run test:e2e:prod-local
8. npm run test:e2e:server-local
9. Update roadmap/v19 docs with actual completion state.

Evidence Artifacts to Produce

1. Phase 1 QA run log with timestamp and operator.
2. User-journey test report (6 scenarios with outcomes).
3. Top-20 data quality review sheet with fixes or accepted risks.
4. E2E automation baseline record showing zero inline default-suite skips plus any opt-in suite outcomes.
5. Updated roadmap blocker checklist showing closure status.