src/service-worker.ts installiert die App-Shell-Assets (build +
files aus $service-worker) beim install-Event in kochwas-shell-
<version>, räumt alte Shell-Caches beim activate und dispatcht
jeden Fetch via resolveStrategy — shell/images cache-first, swr
stale-while-revalidate, network-only unangetastet. Pre-Cache-
Orchestrator kommt in Task 9.
Client-seitig registriert sw-register.ts den SW und verdrahtet
Messages vom SW in den sync-status-Store.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Service worker caches app shell + images for offline recipe access in the kitchen.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
