refactor: enforce src/utils retirement (#2149)

[thymikee]

Summary

Enforce the terminal src/utils retirement for #2149:

• add named R14 tracked-tree enforcement and planted-red coverage;
• make tracked-path and Fallow metadata truthful after the owner moves;
• remove stale utility baseline keys and annotate intentional parser fixtures.

Closes #2149.

Validation

• pnpm check:layering — 190 structural tests passed; guard OK
• pnpm mutation:test — 40 tests passed
• pnpm vitest run scripts/__tests__/test-file-size-ratchet.test.ts packages/selectors/src/internal/parse.test.ts — 12 tests passed
• pnpm check:fallow --base origin/main — no issues in changed files
• pnpm check:affected --run — all runnable checks passed; GitHub-authoritative/device checks skipped by policy
• git ls-files -- src/utils — empty

[github-actions]

Size Report

Metric	Base	Current	Diff
JS raw	2.56 MB	2.56 MB	0 B
JS gzip	860.8 kB	860.8 kB	0 B
npm bundled raw	2.56 MB	2.56 MB	0 B
npm bundled gzip	860.8 kB	860.8 kB	0 B
npm tarball	1.01 MB	1.01 MB	+11 B
npm unpacked	3.44 MB	3.44 MB	0 B
npm clean-installed	3.44 MB	3.44 MB	0 B

npm unpacked components

Component	Base	Current	Diff
JS / dist source	2.72 MB	2.72 MB	0 B
Apple runner source/project	544.4 kB	544.4 kB	0 B
Apple snapshot presentation source	33.8 kB	33.8 kB	0 B
macOS helper source	54.8 kB	54.8 kB	0 B
Android helper artifacts	43.3 kB	43.3 kB	0 B
Other package files	46.3 kB	46.3 kB	0 B

Startup median (7 runs, lower is better):

Scenario	Base	Current	Diff
CLI --version	32.0 ms	33.6 ms	+1.6 ms
CLI --help	80.8 ms	81.5 ms	+0.7 ms

Top changed chunks: no changes in the largest emitted chunks.

Top changed packed files

No changed packed files.

[thymikee]

Reviewed exact head 441ee44644d84852bb9337ef5bbbcfaa6a285fd9 against #2149. Clean verdict. All declared owner-slice dependencies are closed; R14 is a real tracked-tree layering gate, not an allowlist: it consumes git ls-files -z -- src/utils, reports every exact/nested path through the shared retired-path owner, and has non-vacuous planted-path coverage including nested/non-TS/Unicode and exact-root cases. The committed tree has zero tracked src/utils paths, retained literals are explicitly arbitrary-path fixtures, and no second registry or packaging growth was introduced. Exact-head CI and all native smoke lanes are green; mergeable and ready for human review.

[github-actions]

PR Preview Action v1.8.1
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2026-09-02 06:00 UTC