[mblua]

The intermittent first rail click currently lacks enough evidence to distinguish a missing click from node replacement or reverted selection. This adds scoped Debug/Trace records for gestures, real node lifecycle, focus/selection and relevant refreshes, sending each record immediately through the backend logger added in PR #3094.

Records use opaque identities and a closed, bounded payload. Info sends none; existing selection, focus, DOM identity, capture/reordering and product scheduling are preserved. The shared capture module retains its browser listeners and can also load in the original Node suites. This instruments future reproductions; the original cause remains undetermined. No final packaged build, installation, release or version bump was requested.

Validation at head 58e9dda23057267005f44a901606bc5627735424:

• 377 focused tests across 12 files, plus 18 unchanged Node archive tests across 2 files.
• Typecheck, frontend dependency gate, Rust arcs/cycles and complete phase diff check pass.
• Real gate/FakeTransport controls cover interrupted gestures without click, node/config identity, two rails, selection reversal, immediate pending/rejected IPC, privacy, cleanup and bounded refresh pairs.
• Both independent Grinches pass code and positive-proof review. The F1 regression covers pointer, mouse and compatibility-mouse presses outside the rail.
• Full Rust PRE/POST graph/SCC sets/1,211 arc pairs match; three guards pass all 9 tests at 57a8e654c46f9727166922a755346bb51244a23d. Review confirms applicability to this head: the correction changes only two TSX files and leaves every Rust/build input unchanged. Those checks were retained, not rerun.

Main 970c907972be62dd642c0d3d8219a70b206da4ff is integrated without conflicts. Its menu JSON change is preserved; the PR owns only the ten planned frontend paths. V4 phase SHA256: 787AAD2AAD97444D23FE3A7CC4476FAC09042A7702E6A736431E00E8CD4DF618. Shared evidence: .ac/plans/3083-rail-click-diagnostics/P02-code-review-receipt.json and room25 room-shared/3093-P02/.

Closes #3093
Refs #3083

[sonarqubecloud]

Quality Gate passed

Issues
13 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud