Initial site: calculators, map, draws feed, deploy setup

[pushpinderbal]

What this adds

• Four new provincial calculators with eligibility checks: BC PNP, SINP, AAIP, MPNP (plus the existing CRS and OINP, revalidated against the latest official grids).
• Interactive Canada map landing page; click a province with a calculator to jump in.
• Live Express Entry draws feed (client-side IRCC JSON) with per-draw ministerial links, on the federal calculator.
• Score-improvement tips on the CRS page, computed from your actual inputs.
• Blank default inputs, compact form layouts, eligibility banners, Ford blue theme.
• Cloudflare Pages deploy workflow + SPA redirects; rebranded to immicalc.org.

Verification

• npm run typecheck, npm test (340 tests), and npm run build all pass.
• No em-dashes anywhere in copy or comments.

Notes for merge

• Merging to main triggers the CI workflow; the deploy step needs the CLOUDFLARE_API_TOKEN and CLOUDFLARE_ACCOUNT_ID secrets in repo settings.