v1.1.9

• Add Day/Night wallpaper pairs on verified macOS 27 builds, with saved role choices, explicit Automatic selection, and fixed Day or Night variants.
• Protect both pair members during activation, replacement, removal, and backup restore; retain recovery protection and backups when native verification fails.
• Accept macOS 27 Aerial catalogues whose initial asset count is smaller than the full catalogue, preventing a valid catalogue from blocking import setup.
• Keep unrelated missing media from blocking wallpaper activation and removal, while validating the selected wallpaper's files before activation.
• Keep reapplying the selected ordinary wallpaper available during pending or malformed recovery, including after relaunch with only one import.
• Fix the expanded Day/Night Library layout and distinguish saved choices from the active wallpaper mode.
• Select full Xcode before clearing build output to avoid Command Line Tools build failures.

Native imported-video playback, natural solar transitions after the app quits, and lock/unlock acceptance for Day/Night pairs remain unverified. See TESTING.md for the remaining runtime checks.