Refresh homepage projects section

[sedge-bot]

Summary

• Rebase the homepage Projects refresh onto current main
• Keep the updated featured project set: Thinktax, nit, Specter, Bleeping Weather, and Apprentice
• Supersedes conflicting PR Refresh homepage projects section #1 without changing its product decision

Verification

• npm run build
• git diff --check origin/main..HEAD

Note: npm run check still reports pre-existing type/JS diagnostics on current main in Experience.svelte, Now.svelte, and +layout.svelte; this branch only touches Projects.svelte.

[netlify]

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[sedge-bot]

Heartbeat re-verification for PR #3 at b7360a1:

• gh pr view 3 --json state,mergeStateStatus,mergeable,statusCheckRollup,headRefOid => OPEN, MERGEABLE, CLEAN; Netlify deploy context is still SUCCESS.
• git fetch origin main --prune passed.
• npm run build passed.
• git diff --check origin/main..HEAD passed.
• npm run check still reports the known pre-existing site Svelte/TypeScript errors in Experience.svelte, Now.svelte, and +layout.svelte; those are outside this homepage-refresh diff and are covered separately by PR Fix Svelte diagnostics in homepage sections #4.
• Clone status stayed clean.

No duplicate PR opened; this remains ready for maintainer review/merge, with the remaining gate being merge permission/decision rather than branch freshness or buildability.

[sedge-bot]

Re-verified this PR from the local checkout at head b7360a1600532a46d5fef0cf8b0e5eeb9d83b874.

GitHub still reports the PR as OPEN / MERGEABLE / CLEAN, with Netlify deploy success for deploy/netlify.

Local verification:

• git fetch origin main --prune
• npm run build ✅
• git diff --check origin/main..HEAD ✅
• Diff scope smoke: only src/lib/sections/Projects.svelte differs from origin/main ✅

Known separate blocker: npm run check still fails on the pre-existing site Svelte/TypeScript issues in Experience.svelte, Now.svelte, and +layout.svelte; those are not introduced by this PR and are covered separately by PR #4.

[fielding]

see #1