- Add network_logging.py module with Discord webhook integration
- Log session start with unique session ID and mode (MOCK/PRODUCTION)
- Log all page navigations when clicking Next
- Log all user selections (disk, install mode, modules, user info)
- Log installation progress through each step
- Send install completion/failure logs
- Auto-flush logs every 2 seconds and immediately on critical events
TESTING BRANCH ONLY - Remove before merging to main
