TypeScript Utility Functions Library

Create a TypeScript utility functions library for common operations.

Provide production-ready functions with full types, JSDoc comments, and test cases for:

1. **String Utils**: slugify, truncate, capitalize, camelToKebab, template literals parser
2. **Array Utils**: chunk, unique, groupBy, sortBy, flatten, intersection, difference
3. **Object Utils**: deepClone, deepMerge, pick, omit, get (nested path), isEmpty
4. **Date Utils**: formatDate, timeAgo, daysBetween, isWeekend, addDays, startOfWeek
5. **Validation Utils**: isEmail, isURL, isPhone, isStrongPassword, isJSON
6. **Number Utils**: clamp, round, random range, formatCurrency, percentage
7. **Async Utils**: sleep, retry, debounce, throttle, timeout wrapper

For each function: TypeScript signature, implementation, 3 test cases, edge case handling.

Create a TypeScript utility functions library for common operations.

Provide production-ready functions with full types, JSDoc comments, and test cases for:

1. **String Utils**: slugify, truncate, capitalize, camelToKebab, template literals parser
2. **Array Utils**: chunk, unique, groupBy, sortBy, flatten, intersection, difference
3. **Object Utils**: deepClone, deepMerge, pick, omit, get (nested path), isEmpty
4. **Date Utils**: formatDate, timeAgo, daysBetween, isWeekend, addDays, startOfWeek
5. **Validation Utils**: isEmail, isURL, isPhone, isStrongPassword, isJSON
6. **Number Utils**: clamp, round, random range, formatCurrency, percentage
7. **Async Utils**: sleep, retry, debounce, throttle, timeout wrapper

For each function: TypeScript signature, implementation, 3 test cases, edge case handling.