fix(ai-services): Prevent TTY errors during AI streaming output

The  function used terminal manipulation functions
(like , ) for the CLI
streaming progress indicator. This caused errors when Task Master commands
involving AI streaming were run in non-interactive terminals (e.g., via
output redirection, some CI environments, or integrated terminals).

This commit adds a check for  to the condition
that controls the display of the CLI progress indicator, ensuring these
functions are only called when standard output is a fully interactive TTY.

scripts/modules/ai-services.js

@@ -1038,8 +1038,8 @@ async function _handleAnthropicStream(
 	const isSilent =
 		silentMode || (typeof silentMode === 'undefined' && isSilentMode());
 
-	// Only show CLI indicators if in cliMode AND not in silent mode
-	const showCLIOutput = cliMode && !isSilent;
+	// Only show CLI indicators if in cliMode AND not in silent mode AND stdout is a TTY
+	const showCLIOutput = cliMode && !isSilent && process.stdout.isTTY;
 
 	if (showCLIOutput) {
 		loadingIndicator = startLoadingIndicator(