## Summary
- record deferred Instant Insights work as a separate typed Request
Insights item
- keep validation spans, fetches, timing, and live updates separate from
the foreground request
- label Instant Insights consistently in DevTools and CLI output
- stack this observability change on #95939, which moves validation off
the navigation response path
## Verification
- `pnpm jest --runInBand
packages/next/src/server/lib/trace/request-insights.test.ts
packages/next/src/server/lib/trace/local-span-recorder.test.ts
packages/next/src/next-devtools/dev-overlay/components/request-insights/trace-viewer.test.ts
packages/next/src/next-devtools/dev-overlay/shared.test.ts`
- `NEXT_SKIP_ISOLATE=1 NEXT_TEST_PREFER_OFFLINE=1 pnpm test-dev-turbo
test/development/app-dir/request-insights/request-insights.test.ts`
- `NEXT_SKIP_ISOLATE=1 NEXT_TEST_PREFER_OFFLINE=1 pnpm test-dev-webpack
test/development/app-dir/request-insights/request-insights.test.ts`
- `pnpm --filter=next types`
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Co-authored-by: David Ilie <[email protected]>
