- New node types:
- Wait: delays execution for N ticks, supports optional input
- Number: stores a numeric value
- String: stores a string value
- Random: generates random numbers in range [min, max]
- Boolean: stores true/false flag
- Date: stores a date value
- Color-coded nodes matching React Flow palette:
- Wait: yellow
- Number: purple
- String: teal
- Random: pink
- Boolean: emerald
- Date: cyan
- NodeEditDialog now handles all new types with appropriate fields
- Toolbar updated with color-matched buttons