Emergency: t-paliad-042 shipped a service worker that cached a broken
/assets/projects.js (crashes on init with "d is not a function"), making
/projects show the empty state. Mobile Safari users have no devtools to
manually unregister the SW.
Replace sw.js with a self-destructing variant: on activate, delete every
cache, unregister itself, and force every open client to navigate to a
fresh page. /sw.js is served with no-cache headers so browsers refetch
on the next navigation and propagate the kill-switch automatically.
Step 2 (separate commit): fix the projects.js bundle bug, then ship a
properly versioned SW that evicts stale caches on every deploy.
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