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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Name	Link
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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.