minsung
b114581c07
Scaffolds the new app (Vite+React19+Tailwind v4) on HMDesign via git submodule + npm workspace, ports src/viewer2d/* and optionsStore.ts unchanged, and rebuilds the vanilla UI (toolbar/layers/properties/ options panels, coord readout, license dialog, load progress) as HM Design System components. Panel drag/collapse ported from panelUtils.ts as a React hook; Measure UI intentionally left unwired per original app parity. Typecheck and dev-server module serving verified; in-browser rendering not yet verified in this session (no browser tool available) — needs manual check. Refs #1
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