chore(deps): bump jsdom from 29.1.1 to 30.0.0 in /frontend

[dependabot]

Bumps jsdom from 29.1.1 to 30.0.0.

Release notes

Sourced from jsdom's releases.

v30.0.0

Breaking changes:

• Node.js minimum version raised to ^22.22.2 || ^24.15.0 || >=26.0.0.

Other changes:

• Added CSS.escape() and CSS.supports() functions. (@​asamuzaK)
• Added 'background-position-x' and 'background-position-y' CSS properties. (@​olagokemills)
• Fixed getComputedStyle() to convert length values into pixels. (@​asamuzaK)
• Fixed CSS function serialization, e.g., in the return value of getPropertyValue(). (@​asamuzaK)
• Fixed the type of error thrown by document.evaluate() (@​dokson)

Commits

• 20a01fc 30.0.0
• 8c8e583 Precompute WPT expectation matches
• f32245c Bump Node.js floor and dependencies
• 03ef23b Add background-position longhands
• ded056f Test CSS.escape() with numeric IDs
• d312832 Convert CSS values to pixels for computed styles
• 4e0ee41 Implement CSS.escape() and CSS.supports()
• 05eb709 Fix benchmark:compare script on Windows
• 97c1b90 Fix CSS function value serialization
• 15642ba Add benchmark comparison script
• Additional commits viewable in compare view

[Soju06]

CI is red on this bump and the failures are deterministic test-harness incompatibilities with jsdom 30, not app regressions — the components' inline styles are unchanged; only how jsdom serializes them changed. Two intentional jsdom 30 behavior changes are responsible:

1. calc() simplification: jsdom 30's new CSS value pipeline simplifies calc() before serialization, so authored expressions no longer round-trip. Affected assertions (expected → what jsdom 30 now reports):

   • frontend/src/components/donut-chart.test.tsx:191 — calc(5 * 1.75rem) → calc(8.75rem)
   • frontend/src/features/apis/components/account-cost-donut.test.tsx:96 — calc(5 * 1.75rem + 4 * 0rem) → calc(8.75rem)
   • frontend/src/features/dashboard/components/account-cards.test.tsx:22 — calc(2 * 11.5rem + 1rem) → calc(24rem)
   • frontend/src/features/reports/components/model-distribution-donut.test.tsx:104 — calc(4 * 2rem) → calc(8rem)
   • frontend/src/features/reports/components/useragent-distribution-donut.test.tsx:101 — calc(4 * 2rem) → calc(8rem)

2. getComputedStyle() length→px conversion (jsdom 30 release note: "Fixed getComputedStyle() to convert length values into pixels"), which breaks the ch-unit expectations:

   • frontend/src/features/reports/components/model-distribution-donut.test.tsx:139-140 — minWidth: "7ch" no longer matches
   • frontend/src/features/reports/components/useragent-distribution-donut.test.tsx:180-181 — minWidth: "4ch" no longer matches

Total: 7 failed / 937 passed (job 90193268084, head cd19a08).

Since dependabot can't fix these, a maintainer needs to push a companion commit to this branch updating the 7 assertions. Suggested approach: assert on the raw inline style attribute (e.g. element.style.maxHeight or toHaveAttribute("style", expect.stringContaining("calc(5 * 1.75rem)"))) instead of toHaveStyle, which routes through the now-normalizing getComputedStyle; that keeps the tests pinned to what the component authors rather than jsdom's serializer, and makes them robust to future jsdom serialization changes. Alternatively update the expected strings to the simplified forms (calc(8.75rem), calc(24rem), calc(8rem)) — cheaper but re-breaks on the next serializer change, and the ch assertions would have to hardcode a px value that depends on jsdom's font metrics.

One more caveat before merging: jsdom 30 raises the Node.js floor to ^22.22.2 || ^24.15.0 || >=26.0.0. CI runs the suite under Bun (engines not enforced, tests executed fine), but anyone running vitest under an older Node locally will hit the engines wall — worth confirming the documented dev Node version meets the new floor.

[dependabot]

Superseded by #1586.