Method _setupOrAttachMuxSession

* Starts an interactive Claude CLI session with full terminal support. * * This spawns Claude CLI in interactive mode with the configured permission * mode (default: `--dangerously-skip-permissions`). If mux wrapping is enabled, * the session runs inside a tmux session for persistence ac

(options: {
    respawnPaneOptions: import('./mux-interface.js').RespawnPaneOptions;
    createSessionOptions: import('./mux-interface.js').CreateSessionOptions;
    spawnErrLabel: string;
  })