#[derive(Debug, thiserror::Error)]
pub enum ConfigError {
#[error("Component not found: {0}")]
NotFound(String),
#[error("Configuration validation failed: {0}")]
ValidationFailed(String),
#[error("Invalid setting value for key '{key}': {message}")]
InvalidValue { key: String, message: String },
#[error("Configuration apply failed: {0}")]
ApplyFailed(String),
#[error("Persistence error: {0}")]
PersistenceError(#[from] std::io::Error),
#[error("Serialization error: {0}")]
SerializationError(#[from] serde_json::Error),
}