Go-Gotchi 0.30.0 - 0.30.8

Added:
- **Pet identity**: added male and female pets, gender symbols and more recognizable names
- **Audio and notifications**: added a global sound toggle and per-pet notification settings
- **Work and coins**: added daily work limits based on pet age. New pets now start with 150 coins

Changed:
- Sound preferences are saved on the device
- Notifications are managed separately for each pet
- Energy and age progression were rebalanced
- Work limits now stay fixed for the whole local day

Fixed:
- Fixed older pets missing gender information
- Fixed disabled notifications still being sent
- Fixed sounds ignoring the sound setting
- Fixed excessive energy loss while awake
- Fixed the daily cleaning reset