fix(resume): polyfill canvas DOM globals for PDF parsing on Vercel

[RikepilB]

Summary

• Production PDF parsing failed with ReferenceError: DOMMatrix is not defined (found via Vercel runtime logs after a prod smoke submission). pdfjs expects browser canvas globals Node lacks; @napi-rs/canvas is now a real dependency and DOMMatrix/ImageData/Path2D are installed on globalThis before pdf-parse loads.
• Inline admin email fan-out now paces consecutive sends by 300ms — instant Resend rejections still tripped the requests-per-second cap (observed 429 in prod EmailLog).

Test plan

• lint / typecheck / vitest (196) / build
• dispatch tests updated for the paced fan-out
• After deploy: submit a PDF application on prod and confirm parsingStatus COMPLETED

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated (UTC)
scoutlane	Ready	Preview, Comment	Jun 11, 2026 8:59pm

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