fix: resolve Prettier markdown code block parsing errors

- Fix syntax errors in skills markdown files (.github/skills, .opencode/skills)
- Change typescript to tsx for code blocks with JSX
- Replace ellipsis (...) in array examples with valid syntax
- Separate CSS from TypeScript into distinct code blocks
- Convert JavaScript object examples to valid JSON in docs
- Fix enum definitions with proper comma separation

components/ui/calendar.tsx

@@ -58,8 +58,7 @@ const CalendarChevron = ({
   return <ChevronDownIcon className={cn("size-4", className)} {...props} />;
 };
 
-interface CalendarWeekNumberProps
-  extends React.ThHTMLAttributes<HTMLTableCellElement> {
+interface CalendarWeekNumberProps extends React.ThHTMLAttributes<HTMLTableCellElement> {
   week: { weekNumber: number };
 }