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feat: move performance to dedicated tab, fix 0/99999 metrics bug

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Performance metrics moved from dashboard into a new Performance tab.
Fixed null handling so "No data" shows instead of misleading zeros.
Script no longer sends INP=0 when no interaction occurred.
This commit is contained in:
Usman Baig
2026-03-14 22:01:44 +01:00
parent f278aada7a
commit 7247281ce2
7 changed files with 346 additions and 211 deletions
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9
public/script.js
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@@ -94,12 +94,11 @@
// * Only include Web Vitals when performance insights are enabled
if (performanceInsightsEnabled) {
payload.inp = metrics.inp;
// * Only include LCP/CLS when the browser actually reported them. Sending 0 overwrites
// * the DB before LCP/CLS have fired (they fire late). The backend does partial updates
// * and leaves unset fields unchanged.
if (lcpObserved) payload.lcp = metrics.lcp;
// * Only include metrics the browser actually reported. Sending 0 would either be
// * rejected by the backend (LCP/INP must be > 0) or skew averages.
if (lcpObserved && metrics.lcp > 0) payload.lcp = metrics.lcp;
if (clsObserved) payload.cls = metrics.cls;
if (metrics.inp > 0) payload.inp = metrics.inp;
}
// * Skip if nothing to send (no duration and no vitals)