…ndow

Tauri's tauri.conf.json dmg config only supports windowSize + positions,
not iconSize. We need bigger icons + a proper centered layout, so I built
a custom DMG builder using hdiutil + AppleScript Finder customization.

  · scripts/make-dmg.sh (NEW, ~140 lines)
    - Stage signed .app + /Applications symlink in tmp dir
    - hdiutil create UDRW with extra headroom (+20 MB so Finder has space
      for .DS_Store + .fseventsd)
    - Mount + osascript: iconView, no toolbar, 128 px icons, 700×420
      window, icons at (200, 200) and (500, 200)
    - Wait 5+2 s for Finder to flush .DS_Store (prior bug: detached too
      early → layout reverted on open)
    - Detach RW DMG → convert to UDZO with zlib-level=9
    - Auto-cleans stale "/Volumes/DeepCode N" mounts from prior runs
    - Verifies .DS_Store ended up on the volume before detach

  · scripts/sign-and-notarize.sh — step 7 now calls make-dmg.sh instead
    of the inline hdiutil create. Cleaner separation: pretty layout
    isolated, sign+notarize flow unchanged.

End-to-end verified on a real signed+notarized DMG:
  · Apple notarization: Accepted ✓
  · Stapled ✓
  · spctl: accepted, source=Notarized Developer ID ✓
  · Open DMG: icons centered, big, layout persists across remounts

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