[devin-ai-integration]

What and why

Clears the SonarCloud findings on develop under internal/exec/runtime:

• go:S3776 on (*Context).withBoundMembers (binding.go): the walk over an owner's types, their bindings and binding ends that names the members bound through a path is now membersBoundThrough; withBoundMembers keeps the ownership walk and the held/added bookkeeping.
• go:S3776 on (*EvalContext).chainMemberValue (eval.go): the array/vector/quantity/frame branch is chainThroughStructured, the object tail (reference value, shaped array, clock, feature value, variant) is chainObjectMember, and the fallbacks for a member no feature value holds (calc usage run, derived Kernel collection, holder default, Kernel member) are chainUnheldMember.
• godre:S8193 in subsetting_test.go: a temporary that was only compared once is gone.

Pure refactor with no behaviour change; the kernel of each helper is the code it replaced, moved verbatim. No changelog fragment.

Deferred from this group: godre:S8196 in solve/differential_test.go, which #1312 edits; it lands after that PR.

A pull request gets no SonarCloud analysis (the CircleCI scan job runs on develop and main only); the proof that these findings clear is the post-merge scan of develop.

How it was verified

gofmt -l . empty, go build ./..., go vet ./..., make lint, go test ./internal/exec/runtime ./tests/hygiene pass locally (the pilot-corpora gated tests skip without the corpora). The SonarCloud analyzer run over the edited files reports no go:S3776 on the three functions any more.

Checklist

• make test and make lint pass locally
• Tests added or updated for the change
• Documentation extended where it already covers the surface (see CONTRIBUTING.md)
• Changelog entry added as changes/unreleased/<slug>.<section>.md, not as an edit to CHANGELOG.md
• baselines regenerated and make docs-counts run if a gate count moved (compliance rows need nothing: the census is counted at docs build)
• No internal work-item labels (waves, slices, F4, K5) in the body, docs, or changelog

Link to Devin session: https://nasa-jpl-demo.devinenterprise.com/sessions/c2b1ac4ad6de4d8788e78fd86c7c1729
Open in Devin Desktop: https://nasa-jpl-demo.devinenterprise.com/desktop/session/c2b1ac4ad6de4d8788e78fd86c7c1729?variant=devin
Requested by: @HuiJun

Overlap with the open perf PRs

Dry-merged against the current heads of #1347 (perf/memoize-expression-footprints, 2cff947), #1348 (perf/enumerate-children-without-route-walks, 22a1a46) and #1349 (perf/conform-by-symbol, 55b542a, stacked on #1348): all three merge clean with no textual conflict, and the merged trees build, pass go vet on internal/semantic/... and internal/exec/runtime, and pass the model tests. No merge commit was needed; if one of those heads moves onto the same lines before this merges, the resolution is a merge of that head, not a redo of its change.

[devin-ai-integration]

I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".

• Disable automatic comment, CI, and merge conflict monitoring