v0.6.0

Features

• Select/Dropdown widget: select() with SelectState — collapsible dropdown with keyboard and mouse support
• Radio buttons: radio() with RadioState — mutually exclusive option group with ●/○ markers
• Multi-select: multi_select() with MultiSelectState — checkbox-style [x]/[ ] selection with Space toggle
• Tree view: tree() with TreeNode/TreeState — hierarchical expandable tree with ▾/▸ icons
• Virtual list: virtual_list() — renders only visible items for large datasets with ↑/↓ indicators
• Command palette: command_palette() with CommandPaletteState — modal search overlay with fuzzy filtering
• Markdown rendering: markdown() — renders headings (#/##/###), bold, italic, lists, code, and horizontal rules
• Key sequences: key_seq("gg") — matches multi-character key sequences within a single frame
• Password masking: TextInputState.masked — displays input as • characters
• Percentage-based sizing: w_pct() / h_pct() — set container width/height as percentage of parent
• Per-side borders: border_top(), border_right(), border_bottom(), border_left(), border_sides() — show/hide individual border sides with BorderSides type

Improvements

• 30+ widgets total (up from 20+)
• New state types exported: SelectState, RadioState, MultiSelectState, TreeNode, TreeState, CommandPaletteState, PaletteCommand