Same fix as the relay: the local PWA re-fetched every macro image and revoked
the blob on each re-render. Cache image URL -> Promise<objectURL> and reuse
across renders (images are immutable per uuid path); add Cache-Control:
immutable on the desktop /api/image response. Verified in a browser: 7
re-renders produced only the initial 3 image fetches, none repeated.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
shadowdao