Tap Dance:
- Each TD action is now a clickable button that opens the key selector
- Clicking an action -> pick key from popup -> sends TD_SET binary to firmware
- Labels show 1-tap / 2-tap / 3-tap / hold columns
Combo creation:
- Added validation: "Pick both keys first" message if keys not selected
- Debug log for COMBOSET command
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Full port of the KaSe/KeSp split keyboard configurator from egui to Slint:
- 6 tabs: Keymap, Advanced, Macros, Stats, Settings, Flash
- Responsive keyboard view with scale-to-fit and key rotations
- Key selector popup with categorized grid, MT/LT builders, hex input
- Combo key picker with inline keyboard visual
- Macro step builder with visual tags
- Serial communication via background threads + mpsc polling
- Heatmap overlay with blue-yellow-red gradient
- OTA flasher with prog port VID filtering and partition selector
- WPM polling, Tamagotchi, Autoshift controls
- Dracula theme matching egui version
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
