Function parseCompact

Date formatting with pattern tokens. See PATTERNS for presets and the format function docs for the full token reference table.

parseCompact(str: string): LunarDateValue | null
Parse a compact format string back to LunarDateValue

The compact format uses / as separator and encodes leap as 0/1.
Parameters
- str: string
  Compact format string (e.g., "78/34/7/0/28")
Returns LunarDateValue | null
LunarDateValue, or null if the string is malformed
Example
```
parseCompact('78/34/5/0/6')   // { cycle: 78, year: 34, month: 5, leap: false, day: 6 }
parseCompact('78/34/2/1/15')  // { cycle: 78, year: 34, month: 2, leap: true, day: 15 }
parseCompact('invalid')       // null
```
- Defined in format.ts:299