1.0.2: persist editor-session UI state with the project

Canvas zoom + pan, crop / mask-preview / stage-preview / centre-
crosshair overlays, and timeline snap / show-locked / displayMode
/ px-per-sec / auto-fit now ride along in the saved project under
a new optional `editor` block. Reopening a project restores the
workbench exactly how the user left it — zoom level, pan offset,
HUD toggles, timeline density — instead of snapping back to
defaults.

Editor state lives on the store as a sibling of `this.project`
rather than inside it, so `JSON.stringify(store.project)` (the
undo/redo snapshot) still only captures content. The new
`projectForSave` getter stitches the two on the way to disk;
`loadProject` reads them back apart on the way in. Saves through
App.vue, the rename flow, and IDB recents all go through
`projectForSave`.

CanvasStage skips its first auto-fit when a non-default
canvas zoom/pan was restored so the user's exact view survives
mount. Frame-based export options pick up the same source of
truth for a consistent starting point.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "ruwio",
   "private": true,
-  "version": "1.0.1",
+  "version": "1.0.2",
   "type": "module",
   "scripts": {
     "dev": "vite",