## Verdict: **CHANGES REQUIRED**

### Release blockers

1. **390px nutrition chart is not readable.**  
   The synthetic 390px screenshot shows heavily overlapping x-axis date labels and chart text. The browser test only checks non-zero dimensions and width ≤390, so it does not detect the actual readability failure.
   - `scripts/health/assets/health-assets/dashboard-v5-echarts.js:121-123`
   - `tests/browser/dashboard_v5_sprint6g_echarts.spec.js:172-180`

2. **Chart interaction coverage bypasses real browser interaction.**  
   The spec calls ECharts’ internal `chart.trigger('click', ...)` rather than clicking an actual rendered point. This proves callback wiring but not pointer hit-testing or user-operable bar/scatter interactions.
   - `tests/browser/dashboard_v5_sprint6g_echarts.spec.js:40-51`
   - Used at `tests/browser/dashboard_v5_sprint6g_echarts.spec.js:106-113`

3. **Screenshot generation is not fail-closed to the synthetic runtime.**  
   The spec defaults to `http://127.0.0.1:8014` and captures repository screenshots without asserting the isolated instance ID/synthetic response sentinel. Running the spec directly can therefore capture a stale or foreign server. The isolated matrix is safe, but the screenshot-producing spec itself does not enforce that boundary.
   - `tests/browser/dashboard_v5_sprint6g_echarts.spec.js:6`
   - `tests/browser/dashboard_v5_sprint6g_echarts.spec.js:9-16`
   - `tests/browser/dashboard_v5_sprint6g_echarts.spec.js:117-119`
   - `tests/browser/dashboard_v5_sprint6g_echarts.spec.js:179-180`

### Positively verified

- Full `health-record-6e` render includes ECharts once and omits Chart.js.
- Complete nutrition days retain numeric values; incomplete days remain null/unknown.
- Nutrition/Aphthae wording is explicitly exploratory and non-causal.
- Accessible chart tables are present.
- Calendar color pairs meet the asserted WCAG AA contrast threshold.
- The isolated matrix constructs a disposable synthetic fixture and server.
- Existing ignored screenshots are 1280px and exactly 390px wide and visibly use synthetic fixture content, but their provenance is not enforced by the spec itself.
- Focused tests: **11 passed**.
- JavaScript syntax checks passed for the main bundle, ECharts adapter, and Sprint 6G browser spec.
- `git diff --check` passed.

### Repository impact

- **No files created or modified.**
- No production database, reports, exports, or other production data were opened.