* fix(lint): enforce viewBox presence and title length cap
- Add a11y check: non-decorative <svg> must carry a viewBox attribute
with exactly four numeric tokens and positive width/height dimensions.
- Add a11y check: <title> text must be 60 characters or fewer, closing
the gap between the CONTRIBUTING.md spec and linter enforcement.
- Update VALID_SVG in test-lint-a11y.py to include viewBox so all
existing passing cases remain valid after the new checks land.
- Add three adversarial cases: missing-viewbox, invalid-viewbox,
title-too-long — all verified against the gate suite (47/47 OK).
* fix(lint): accept SVG comma separators and reject non-finite viewBox values
- Re-split viewBox on [\s,]+ so comma-separated values (e.g. 0,0,800,600)
are accepted as valid SVG
- Guard each component with math.isfinite() so values like inf and nan are
rejected rather than passing the > 0 size check
- Add adversarial test cases: viewbox-comma-separated (pass),
viewbox-nonfinite-width, viewbox-nonfinite-height (both fail)
- Bump plugin manifests to 2.4.1
* fix(lint): reject viewBox numbers with Python-only underscore separators
* test(lint): cover remaining viewBox cases
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Co-authored-by: Rupam Pal <rupam.pal@euromonitor.com>
