Clears the six npm deprecation warnings that fire on every deploy:
inflight, @humanwhocodes/config-array, rimraf, glob,
@humanwhocodes/object-schema, and eslint 8.57 itself — all transitive
deps of the eslint v8 chain.
- eslint 8.57 → 9.10
- @typescript-eslint/{parser,eslint-plugin} 7.x → typescript-eslint 8.7
(single combined package in v8)
- eslint-plugin-react-hooks 4 → 5 (v5 supports flat config)
- eslint-plugin-react 7.34 → 7.36
- Replace .eslintrc.cjs with eslint.config.js (flat config)
- `npm run lint` switches from --ext flag (legacy) to flat-config lookup
typecheck silent, lint silent, build identical bundle (45.93 KB raw,
15.76 KB gzip on the main entry).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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