Function fork_session

crates/opencode-server/src/routes.rs:492–505

(
    State(state): State<Arc<ServerState>>,
    Path(id): Path<String>,
    Json(req): Json<ForkSessionRequest>,
)

}

async fn fork_session(
    State(state): State<Arc<ServerState>>,
    Path(id): Path<String>,
    Json(req): Json<ForkSessionRequest>,
) -> Result<Json<SessionInfo>> {
    let forked = state
        .sessions
        .lock()
        .await
        .fork(&id, req.message_id.as_deref())
        .ok_or_else(|| ApiError::SessionNotFound(id))?;
    persist_sessions_if_enabled(&state).await;
    Ok(Json(session_to_info(&forked)))
}

async fn share_session(
    State(state): State<Arc<ServerState>>,