reanme purple to info

.rules

@@ -62,7 +62,7 @@ All colors in the system derive from 6 primary hex values in `design-system.css`
 - `--color-success` (#2CA18E) - Success Green  
 - `--color-warning` (#D9A12C) - Warning Amber
 - `--color-danger` (#A12C40) - Danger Red
-- `--color-purple` (#2C40A1) - Purple accent
+- `--color-info` (#18b2c4) - Info/accent color
 - `--color-gray-base` (#667085) - Neutral gray
 
 ### Tailwind Color Classes
@@ -74,7 +74,7 @@ gray-*     (25-950) - Neutral scale
 success-*  (25-950) - Green scale  
 error-*    (25-950) - Red scale
 warning-*  (25-950) - Amber scale
-purple-*   (25-950) - Purple scale
+info-*     (25-950) - Info/accent scale
 ```
 
 **❌ BANNED** (These will NOT work):