feat: add element timing instrumentation - #396
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Corresponding semantic convention PR: open-telemetry/semantic-conventions#4011 |
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Summary
ElementTimingInstrumentation, observing the Element Timing API and emitting a log record per entry (identifier, element tag, render/load/start time, url, natural width/height), following the sameInstrumentationBase+ log-emission pattern asresource-timing/navigation-timing.createPerformanceObserver/isEntryTypeSupportedutility (src/utils/performanceObserver.ts) for building single-entry-typePerformanceObservers, and use it in the new instrumentation.