The .app bundle's binary doesn't auto-update on rebuild without tauri-cli
(not installed on the dev machine) — document the manual sync step so a
fresh clone doesn't hit the "changes aren't showing up" trap.
Orphan branch with no history — includes the Tauri shell (src-tauri/) and
vendored Three.js (vendor/) that were never pushed before, so a fresh clone
can actually build the native app. Drops the large .pcd sample captures and
editor cruft (.obsidian, .DS_Store); they aren't needed to build or run the
app (point clouds load via drag-and-drop, not bundling).
Dongubak