feat(ui): add timeline component; complete terminal-noir design system
- introduce Timeline component with scroll-in animation and type-colored
spine dots (career/edu/cert/project/homelab)
- swap terminal-noir palette for macOS Classic dark/light with matching
timeline color tokens in globals.css
- add light mode overrides, cursor blink keyframe, font-size 14px base
- update Widget header: prefix/name split, bracket badge, no divider rule
- align archive and homelab page headers to ❯ prompt style
- convert all font-sans prose in homelab/archive to font-mono
- rename widget titles to namespaced paths (homelab/network, etc.)
- skills label: uppercase tracking → plain text-sm; remove row borders
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