- Add 18 screenshots sorted by workflow order to data/screenshots/
- Update metainfo with actual screenshot entries and correct dimensions
- Fix build script to copy all hicolor icon sizes and use linuxdeploy --output
- Add exported icon PNGs to icons/
- Redesign tutorial tour from modal dialogs to popovers pointing at actual UI elements
- Add beginner-friendly improvements: help buttons, tooltips, welcome wizard enhancements
- Add AppStream metainfo with screenshots, branding, categories, keywords, provides
- Update desktop file with GTK category and SingleMainWindow
- Add hicolor icon theme with all sizes (16-512px)
- Fix debounce SourceId panic in rename step
- Various step UI improvements and bug fixes
