fix: suppress spinner output when --json or --silent flag is passed

src/lib/spinner.ts

@@ -1,14 +1,40 @@
 import { createSpinner, type Spinner } from 'nanospinner'
 
+const argv = process.argv.slice(2)
+
 const DOTS_SPINNER = {
   interval: 80,
   frames: ['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏'],
 }
 
+const shouldSuppressOutput = () => argv.includes('--json') || argv.includes('--silent')
+
+const noopSpinner: Spinner = {
+  start: () => noopSpinner,
+  stop: () => noopSpinner,
+  success: () => noopSpinner,
+  error: () => noopSpinner,
+  warn: () => noopSpinner,
+  info: () => noopSpinner,
+  update: () => noopSpinner,
+  reset: () => noopSpinner,
+  clear: () => noopSpinner,
+  spin: () => noopSpinner,
+  write: () => noopSpinner,
+  render: () => noopSpinner,
+  loop: () => noopSpinner,
+  isSpinning: () => false,
+}
+
 /**
  * Creates a spinner with the following text
  */
-export const startSpinner = ({ text }: { text: string }) => createSpinner(text, DOTS_SPINNER).start()
+export const startSpinner = ({ text }: { text: string }): Spinner => {
+  if (shouldSuppressOutput()) {
+    return noopSpinner
+  }
+  return createSpinner(text, DOTS_SPINNER).start()
+}
 
 /**
  * Stops the spinner with the following text