//! Built-in profile handlers for `ilink-hub-bridge profile <type>`.
//!
//! Each handler reads the P0 env vars injected by the bridge and writes to stdout:
//! - Optional first line: `ILINK_SESSION:<uuid>`
//! - Remaining lines: reply text for the WeChat user
//!
//! All built-ins follow the same P0 exec protocol as external scripts/SDKs.
/// Dispatch to a built-in profile handler by type name.
///
/// Called from `ilink-hub-bridge profile <type>`.
pub async