1. Refactor(preferences): Refactor schema definitions from literals to DSL
2. Feat(core): Add Control_Segment to fast-form
3. Improve(core): Enhance Feature_DSLEngine, Control_Color, Control_Range, and Control_Hotkey in fast-form
4. Improve(preferences): Enhance UI styling
5. Fix(markmap): Fix broken configuration button in TocMarkmap
6. Bump(abc): Update version to 6.6.3