App Sandbox was enabled without the network client entitlement,
blocking Sparkle from fetching the appcast. Disabled sandbox
entirely (app doesn't need it). Rebuilt v1.3 DMG with new
signature.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

sparkle:version values must match CFBundleVersion. The old arbitrary
numbering (v1.2=3, v1.3=2) caused Sparkle to offer v1.2 as a
"downgrade update" to v1.3 users.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Synced from master Directions:
- 33_app-minimums.md (new): baseline features checklist with Sparkle
  sandbox gotcha and 1000s build number scheme
- 22_macos-platform.md: added Sandbox + Sparkle section
- 30_production-checklist.md: updated with build number verification step

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Adopted version scheme: build 130-139 for v1.3, 140-149 for v1.4, etc.
Updated appcast sparkle:version to match CFBundleVersion.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Grid split: new GridSettings model, grid-aware export pipeline, CLI support
(--grid-rows, --grid-cols), GridOverlayView preview, collision/overwrite
detection for tile filenames.

ContentView refactor: split 1,785-line file into SidebarComponents/ modules
and ZoomPicker. Added os.Logger-based logging (CropBatchLogger).

Production hardening (4 issues from code review):
- Add @mainactor to all 5 @observable model classes (Swift 6 safety)
- Replace DispatchQueue.main.asyncAfter with Task.sleep in FolderWatcher
- Surface watermark load errors with inline UI label
- Fix drag-drop watermark to pass isSecurityScoped: true

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

The downscale branch in scaledImageView used Image(nsImage:) without
.resizable(), so on cache miss the full-res fallback rendered at native
pixel dimensions for one frame. Added .resizable().aspectRatio() to both
branches and guarded content on viewSize > 0.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

LastUpgradeCheck → 2640, DEVELOPMENT_TEAM moved to project level,
build number bumped to 140 for v1.4.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Blur pipeline reordered: Transform → Crop → Blur (was Blur → Transform → Crop).
Blur regions now remapped to post-crop coordinate space via relativeToCrop,
fixing the Y-shift bug where blur appeared offset by cropTop pixels.

Corner radius toggle now auto-switches format to PNG and disables the
format picker. Previous format restored when corner radius is turned off.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ColorPicker with empty label and .labelsHidden() inside Form had its
click target collapsed. Added proper label and explicit frame size
for text color, shadow color, and outline color pickers.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

6 new screenshots: Grid Split, Corner Radius, Blur, Watermark, Snap,
Snap Debug. Version badges bumped to 1.4. Added Grid Split and blur
toggle to features and shortcuts.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>