feat(pwa): bound precache to app shell, route optional assets to expi…

[legend-esc]

Closes #215

Summary

Bounds the PWA precache to the application shell only, dropping precached assets from 200 entries (~9.66 MiB) to 18 entries (~110 KiB). Optional chain SDK chunks and media assets are no longer precached; they are lazily loaded and kept in bounded, expiring runtime caches instead.

Changes

vite.config.ts

• injectManifest.globPatterns now matches only the app shell: index.html, assets/*.css, favicons, apple-touch-icon.png, manifest.webmanifest.
• Removed the maximumFileSizeToCacheInBytes: 4 MiB override that accommodated heavy chunks; those chunks now go to runtime cache with expiration.

src/sw/app-sw.ts

• Added two expiring runtime CacheFirst routes:
  • assets (/assets/*.js): max 60 entries, 7-day TTL (entry bootstrap, route chunks, chain SDKs).
  • images (*.png|jpg|jpeg|svg|gif|webp|ico): max 40 entries, 30-day TTL (icons, OG image, logos).
• Vite content-hashed filenames bust old entries automatically on deploy.

src/lib/swCache.ts

• Bumped CACHE_VERSION 1 → 2 (cache schema migration).
• Added assets and images to CACHE_KINDS; v1 caches are purged on activation.

src/lib/swCache.test.ts

• Added tests: bounded runtime cache kinds exist; v1 caches purged on v2 activation (storage-pressure release).

Verification

• pnpm build (tsc + vite): green, precache 18 entries / 109.76 KiB.
• prettier --check: clean.
• vitest run src/lib/swCache.test.ts: 10/10 pass.
• Commit af78566 on develop; feature branch feat/wave10-pwa-bounded-precache pushed to origin.

Behavior covered

• First install: shell assets precached; chunks/media load on demand.
• Offline reload: shell served from precache; previously-visited chunks/media served from expiring runtime caches.
• Update: new build generates new hashed asset URLs; old cache entries expire/bust naturally; v2 activation purges v1 caches.
• Storage pressure: caches bounded by maxEntries + maxAgeSeconds; v1→v2 migration releases legacy caches on activation.

[drips-wave]

@legend-esc Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits

[vercel]

@legend-esc is attempting to deploy a commit to the truthixify's projects Team on Vercel.

A member of the Team first needs to authorize it.

[truthixify]

The optional-JS runtime route never matches: Workbox RegExpRoute evaluates the full URL href, so /^/assets/.*.js$/ cannot match https://host/assets/file.js. At the same time all JavaScript is removed from the precache, including the entry bootstrap; after first installation that bootstrap was fetched before the new worker controlled the page, so the first offline reload can fail. Match on url.pathname (or use a non-anchored safe same-origin route), keep the critical bootstrap in the app shell, and add a browser test covering first install followed immediately by offline reload.