feat(childManage): update child management to use UUIDs for identifiers
- Refactored various DTOs, services, and repositories to replace Long IDs with UUIDs for better uniqueness and scalability.
- Updated SettingsRestriction, RestrictionContent, and RestrictionTime entities to utilize UUIDs.
- Adjusted corresponding service methods and repository queries to accommodate the new UUID structure.
- Enhanced exception handling to include UUIDs for clearer error messages.
This change improves the consistency and future-proofing of the child management system.