#[derive(Debug, thiserror::Error)]
pub enum WebSocketError {
#[error("WebSocket handshake failed: {0}")]
Handshake(String),
#[error("connection failed: {0}")]
Connect(String),
#[error("protocol error: {0}")]
Protocol(String),
#[error("message too large: {size} > {max}")]
MessageTooLarge { size: usize, max: usize },
#[error("IO error: {0}")]
Io(#[from] std::io::Error),
}