- Updated the keyboard layout in `get_reply_keyboard` and `get_reply_keyboard_admin` functions to use `row` for better organization of buttons.
- Added unit tests for the admin keyboard to verify button arrangement and functionality.
- Ensured that each button is placed in its own row for clarity in the user interface.
- Added OS detection functionality to the ServerMonitor class, allowing for tailored disk usage and uptime calculations based on the operating system (macOS or Ubuntu).
- Introduced methods for retrieving disk usage and I/O statistics specific to the detected OS.
- Updated the process status check to return uptime information for monitored processes.
- Enhanced the status message format to include disk space emojis and process uptime details.
- Updated tests to reflect changes in process status checks and output formatting.
- Introduced a new server monitoring module in `run_helper.py` with graceful shutdown handling.
- Updated `.gitignore` to include PID files.
- Added `test-monitor` target in `Makefile` for testing the server monitoring module.
- Included `psutil` in `requirements.txt` for system monitoring capabilities.
