Framework facts on the spans overview + meta.framework

[jantimon]

Three field-verified polish items from the 1.1.0 bench dogfood.

1. React detection facts on the query spans overview

span.addons.react was drill-only. Bulk consumers reading query spans could not see framework facts, the same gap frameFloor recently graduated out of. Overview rows now carry a compact addons.react (version + build) on both SpanEntry and SpanCountsEntry; the run entry synthesized from a CpuModel.breakdown (default/node/firefox) threads the stored run span's facts through. Kept minimal on purpose: commitCount and the node-lane server phases stay in the query span drill. A React fact with no version/build (node phases only) leaves the overview addon-free rather than fabricating a field. Human side: one subtle React (addon): v… · build line under the overview, and query span names framework off in its header when the mode explains an absent React block.

2. alloc-vs-cpu JSON container, settled empirically

Recorded a node cpu + alloc pair under the gate lock and diffed the actual top-level JSON of --by package --format json:

• query cpu -> object, keys: profile, jsSelfMs, activeMs, totalMs, sampleCount, sampleIntervalUs, system, breakdown, byPackage, byFile, hot, dropped, hints
• query alloc -> object, keys: profile, totalBytes, sampleCount, sampling, byPackage, byFile, hot, dropped, hints

Both are an object with a byPackage[] member — already aligned. The bench's "alloc returns a bare array" does not reproduce. No code change.

3. meta.framework

A --framework off recording and a no-React-signal auto recording were indistinguishable (both carry no Span.addons). Recordings now stamp meta.framework ("off" | "auto") on every lane — browser (buildMeta), node-cpu, and node-alloc. Additive-optional, display-only (no gate branches on it), so optional per the gate-field policy. The "byte-identical under --framework off" note in addon.ts/registry.ts/CLAUDE.md is reworded: no addon facts enter the recording (the Span.addons slot stays absent), while meta.framework records the mode as core provenance.

Verification

Full gates green under the gate lock: build, lint, format:check, knip, unit (690, +4 new for the overview addon lift), measurement (6), e2e (51). Self-review: structured hostile two-pass (a subagent spawn tool was unavailable, so /review-intern-sub could not launch a fresh reviewer).