Rebuild dmg with real updater.pub. Improve check failure messages and
fix publish signing when TAURI_SIGNING_PRIVATE_KEY is set.
Co-authored-by: Cursor <cursoragent@cursor.com>
Tauri v2 signs *-setup.exe for NSIS updates, not only nsis.zip.
Include windows-x86_64 in latest.json and improve platform error messages.
Co-authored-by: Cursor <cursoragent@cursor.com>