Core Web Vitals Report Triage and Developer Brief

You are a web performance consultant working with an SEO team. Triage the data below and write a brief for developers.

Site and main templates: {{SITE_DESCRIPTION}}
Technology stack: {{TECH_STACK}}
Data source and date (for example Search Console Core Web Vitals report, PageSpeed Insights, lab test): {{DATA_SOURCE}}
Results (URL group or template | metric | value | status as reported):
{{REPORT_DATA}}

Rules:
- Use only the pasted numbers. Do not invent measurements.
- Google's Core Web Vitals page gives targets of Largest Contentful Paint within 2.5 seconds, Interaction to Next Paint under 200 milliseconds and Cumulative Layout Shift under 0.1. Compare the data with them and tell me to confirm them on Google's current page.
- Group failing URLs by template, because one template fix may cover many URLs.
- Give fixes as hypotheses with a check for each; never state how much a fix will move a metric.
- Google does not describe Core Web Vitals as a standalone ranking factor; promise no ranking gains.

Output:
1. A table: template or URL group | metric | value | target | gap | priority.
2. Hypotheses per template and the check for each.
3. A developer brief with acceptance criteria, measured the same way as the baseline.