Add Explicit Session Exit Controls Mini-Features ä2+3

src/admin_ssh_console.h

@@ -43,6 +43,8 @@ typedef struct {
 
 /* Starts the single command worker. It is the sole esp_console_run() caller. */
 esp_err_t admin_ssh_console_init(void);
+/* Register administration-shell-only root commands after esp_console initialization. */
+esp_err_t admin_ssh_console_register_commands(void);
 /* Called after all ESP-IDF commands are registered; starts the UART0 frontend. */
 esp_err_t admin_ssh_console_start_uart_frontend(void);