chore(deps): vitest 5, jsdom 30, jest-dom 7 (majors)

[lacymorrow]

One sentence

Major bumps of the test runtime (vitest 5, jsdom 30, jest-dom 7), grouped because they share one upgrade path and are verified together; left open for review because they are majors.

Bumps

Package	From	To
vitest	4.1.10	5.0.0
jsdom	29.1.1	30.0.1
@testing-library/jest-dom	6.9.1	7.0.1

Breaking changes and how they land here

• vitest 5 (https://github.com/vitest-dev/vitest/releases/tag/v5.0.0, migration guide in docs/guide/migration): Node >= 22.12 and Vite >= 6.4 (we have vite 8.1.4); clearMocks defaults to true (tests/setup.ts already ran vi.clearAllMocks() after each test, so behaviour is unchanged); vi.mock/vi.hoisted inside functions now throw (all calls here are top-level); unawaited resolves/rejects fail the test (the single use in tests/node/lib/changelog.test.ts is awaited); test.sequential removed (unused); globalThis assignments propagate to the jsdom window; reports/attachments default to .vitest/ (added to .gitignore); deprecated entrypoints like vitest/reporters removed (unused). @vitest/coverage-v8 is not a dependency here, so test:coverage was already not runnable and is unchanged. vitest.config.browser.ts still uses the pre-vitest-4 string provider: "playwright"; that config was already non-functional without @vitest/browser-playwright and is out of scope.
• jsdom 30 (https://github.com/jsdom/jsdom/releases/tag/v30.0.0): the only breaking change is Node ^22.22.2 || ^24.15.0 || >=26; adds CSS.escape()/CSS.supports(), and getComputedStyle() now returns lengths in px (no snapshot here depends on that). 30.0.1 fixes a calc() regression from 30.0.0.
• @testing-library/jest-dom 7 (https://github.com/testing-library/jest-dom/releases/tag/v7.0.0): @testing-library/dom is now a required peer (>=10 <11), satisfied by @testing-library/react 16.3.3; Node >= 22; new matchers added, none removed. tests/setup.ts still does import "@testing-library/jest-dom" plus expect.extend(matchers) from /matchers, both still exported.

No test files changed. Supersedes dependabot #49.

Verification

• pnpm typecheck clean
• pnpm test: 4 files, 16 tests green
• pnpm exec vitest run --config vitest.config.node.ts: 3 files, 21 tests green
• pnpm build passes
• next start smoke: / 200, /changelog 200, /changelog/nope-xyz 404, /faq 200, /nope-404 404

Installed with --ignore-scripts (isolated-vm postinstall fails under Node 26 locally; matches how Vercel builds).

https://claude.ai/code/session_01KLWmWU1KLE2diUH14ryqv1

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Project	Deployment	Actions	Updated
bones	Ready	Preview	Sep 14, 2026 6:44pm UTC