- Add `selection/state.rs` to manage selection masks, including combining masks and calculating bounds.
- Introduce `vector_edit.rs` for vector shape manipulation, handling drag sessions, and hit testing for handles.
- Create `feature_scorecard.rs` to ensure stable feature identifiers and regression gates for GUI components.
- Implement raster behavior tests in `raster_test.rs` to validate gradient application against masks.
- Implemented a theme system in `iced-panel-adapter` for consistent styling across panels.
- Created `iced-panel-ai-chat` for an AI assistant interface, including message handling and UI components.
- Developed `iced-panel-script` for a DSL editor with execution capabilities, allowing procedural drawing commands.
- Introduced message types for interaction in both chat and script panels.
- Added color and theme management for improved visual consistency.
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