[diegomura]

Problem and fix

The Site build fails because the MCP regression test imports Vitest, but the site installs dependencies independently and did not declare it. Add Vitest to the site's dev dependencies and lockfile, expose yarn test, and run those tests in the Site workflow.

The two wrapped-text float snapshots fail on Linux because the PDF.js test helper has no standard-font directory configured. The reproduced Linux diff shows substituted glyphs with unchanged line breaks and pagination. Load PDF.js's bundled standard fonts instead of falling back to fonts on the host. No renderer behavior, snapshot images, or comparison thresholds change.

Validation

• Reproduced both float failures in a clean Linux container before the fix.
• Isolated site install, all 5 MCP tests, and production Next.js build pass without root dependencies.
• All 115 renderer tests pass on macOS; all 14 float tests also pass on Node 20.
• Lint and formatting checks pass.
• Full clean Linux test run passes: 3,666 tests passed, 1 todo, including both previously failing float snapshots.

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Project	Deployment	Actions	Updated
react-pdf	Ready	Preview	Oct 20, 2026 10:48pm UTC

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