refactor: move utilities to owning modules

[thymikee]

Summary

Move the ten utilities and four tests from src/utils to their exact owning modules, updating only their named importers. Keep keyboard action validation in src/core so the command and daemon callers share one vocabulary.

Closes #2141.

Validation

• AGENT_DEVICE_VITEST_MAX_WORKERS=1 pnpm vitest run src/core/__tests__/device.test.ts src/core/__tests__/interactors.test.ts src/cli/parser/__tests__/perf-args.test.ts src/commands/interaction/runtime/truncate-utf8.test.ts — 4 files, 37 tests passed
• Observed planted-red regressions for validation bounds and config precedence, then restored the implementation and passed the positive controls
• pnpm check:layering — passed
• pnpm check:fallow --base origin/main — passed
• pnpm check:affected --run — format, lint, typecheck, layering, Fallow, and build passed; 451/455 related files passed, with four unrelated iOS/provider timing or host-contention failures also reproduced/controlled on clean origin/main

[github-actions]

Size Report

Metric	Base	Current	Diff
JS raw	2.56 MB	2.56 MB	0 B
JS gzip	860.9 kB	860.9 kB	0 B
npm tarball	982.9 kB	982.9 kB	0 B
npm unpacked	3.40 MB	3.40 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	0 B	0 B	0 B
Other package files	46.0 kB	46.0 kB	0 B

Startup median (7 runs, lower is better):

Scenario	Base	Current	Diff
CLI --version	28.9 ms	28.8 ms	-0.1 ms
CLI --help	72.2 ms	69.7 ms	-2.5 ms

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

Top changed packed files

No changed packed files.

[thymikee]

Reviewed exact head 9f0e202ad0cd308b530cf4da884da0ee8a488d9e against #2141 and the current owning-module boundaries. Clean code-review verdict: all ten utilities/tests are exact relocations to their owning modules, the shared keyboard vocabulary remains in core, no legacy utility imports or new layering/public-surface seams remain, and the package/JS size delta is zero. The exact-head static/integration/coverage checks reviewed are green; iOS Smoke was still running at review time, so this is ready for human review but not yet a merge-ready claim.

[github-actions]

PR Preview Action v1.8.1
Preview removed because the pull request was closed.
2026-09-01 17:46 UTC