fix(daily-checkin): verify a week of health email reports, not two

[harlan-github-agent]

🔗 Linked issue

Closes #194

❓ Type of change

• 📖 Documentation
• 🐞 Bug fix
• 👌 Enhancement
• ✨ New feature
• 🧹 Chore
• ⚠️ Breaking change

📚 Description

The daily check-in gate expects one sent operator report per Melbourne date, but the probe only ever read the two newest rows:

-- before
SELECT ... FROM daily_health_checks ORDER BY report_date DESC LIMIT 2
-- after
SELECT ... FROM daily_health_checks WHERE report_date >= date('now', '-8 days') ORDER BY report_date DESC LIMIT 8

A gap three days back could never show up, so continuity was unverifiable. Eight UTC days is the smallest bound that always covers seven Melbourne dates, and report_date is the primary key of daily_health_checks, so the row cap can never hide an in-window date. The query now lives beside the other built queries where it can be asserted on through the export.

The skill's gate wording never named a visible window, so it needed no change. One uncertainty: this sandbox has no outbound network, so the Nuxt test environment could not boot here; the vitest suite runs in CI where it does.

🤖 AI disclosure: Harlan Agent Kit modified this description. My AI open-source policy.

[harlan-github-agent]

🤖 MERGED

Harlan Agent Kit posted this automated review. It is not Harlan's personal review or approval. AI open source policy. Last updated: 2026-09-14 10:53 UTC.

GitHub merged this pull request.

No material findings were recorded.

Review completed. No material findings.