refactor: remove excessive logging and improve user experience

- Removed pagination from device logs page - now shows all logs on single page
- Disabled font subsetting logs during PDF generation (fontTools spam)
- Removed verbose device info and getdeviceinfo cache logging
- Cleaned up user listing debug logs and admin session logs
- Removed DEVICE_LOG_ENTRY_JSON spam logs
- Removed device-logs UUID resolution debugging
- Fixed dashboard user_devices undefined error with proper fallback
- Improved overall log readability by keeping only essential operational logs

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
