- add `dot` and `onRemove` props to Badge for colored dot and removable tag support
- delete RoleBadge component in favor of Badge with dot prop
- update UserCreateModal, UserEditModal, and UsersPage to use Badge instead of RoleBadge
- remove RoleBadge export from shared components index
- remove color palette table from main color section in DESIGN.md
- update typography scale (reduce body/secondary text sizes)
- revise border radius values for badges, buttons, modals, and cards
- expand sidebar navigation section with detailed structure and visual states
- add accordion section behavior and item template specs
- update Badge component to use fully rounded corners and adjust sizing
- update Modal component border radius and backdrop styles
hykocx