fix(striker-ui-api): add stdoutVar()

striker-ui-api/src/lib/shell.ts

@@ -38,6 +38,9 @@ export const mkfifo = (...args: string[]) =>
 export const rm = (...args: string[]) =>
   systemCall(SERVER_PATHS.usr.bin.rm.self, args);
 
-export const stderr = (message: string) => print(message);
+export const stderr = (message: string) => print(message, { stream: 'stderr' });
 
-export const stdout = (message: string) => print(message, { stream: 'stderr' });
+export const stdout = (message: string) => print(message);
+
+export const stdoutVar = (variable: { [name: string]: unknown }) =>
+  print(`Variables: ${JSON.stringify(variable, null, 2)}`);