Lumeira 0.1.0

Added

• Initial release of Lumeira — native macOS image viewer.
• Metal-backed rendering pipeline with cursor-anchored zoom, pinch, and drag-to-pan.
• Format support via SupportedFormat (JPEG, PNG, HEIC, TIFF, and more).
• EXIF metadata panel, RGB histogram overlay, magnifier loupe.
• Non-destructive rotation and flip transforms.
• Thumbnail sidebar with async loading and LRU cache.
• Sliding-window prefetch pipeline (3 ahead, 2 behind).
• Batch rename, convert, and resize operations.
• Side-by-side comparison view (2-4 images) with synchronized zoom/pan.
• Auto-advance slideshow with configurable interval, transitions, and shuffle.
• Customizable keyboard shortcuts with persistence.
• Settings (General, Shortcuts, About).