Added a new ButtonConfig dataclass:
enabled: bool = False
pin: int = 17 (BCM pin for the button)
long_press_seconds: float = 1.0
Extended the main Config dataclass with a button: ButtonConfig field.
Updated load_config_from_json() to construct button_config from the "button" section in config.json.
This allows enabling/disabling the button, changing the GPIO pin, and tuning the long-press threshold (and optional poll interval) without code changes.
Adds new dataclasses (AppConfig, AudioConfig, LedConfig, etc.) to define the application's configuration structure. Includes a load_config_from_json() helper to parse the JSON file and provide default values for any omitted sections
imonlinux