Add measured baseline to event-driven draft

[ajlennon]

Summary

• add the measured pre-event-driven task baseline to the unlisted review draft
• distinguish whole-task local token counters from polling-only or billed usage
• retain the existing generated, post-specific image and review-only publication controls

Verification

• npm test - 70 Playwright/privacy/content tests passed
• npx playwright test tests/review.spec.js - desktop and mobile review checks passed after regeneration
• private denylist/privacy gate passed

Assistance

AI-assisted: Codex gathered the bounded local counters, added the evidence caveat, regenerated the review source and page, and ran the checks above.