The spec still listed undo, the eraser, colours and smoothing as
missing. Describe the ink engine and palm rejection as built (draw vs
navigate intents, settings toggles, cancelled pointers), the plus
buttons, fling offer, grid and page size dialog, note that sync is
GitHub-only, and replace the stale open item with the real ones.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GaoZtJQZwLXkEgWs8twCia
Multi-stage build: Node builds the static PWA, nginx serves it with an SPA
fallback, long-lived caching for hashed assets, no-cache for the app shell
and service worker, and the correct type for the web manifest.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VsorPV3JeJRoZ1mD1pdvtL
