fix(add-task): removes stdout in add-task which will crash MCP server (#593)

* fix(add-task): fixes an isse in which stdout leaks out of add-task causing the mcp server to crash if used.

* chore: add changeset

---------

Co-authored-by: Ralph Khreish <35776126+Crunchyman-ralph@users.noreply.github.com>

.changeset/tidy-seals-rule.md

@@ -0,0 +1,5 @@
+---
+'task-master-ai': patch
+---
+
+Fix add-task MCP command causing an error

scripts/modules/task-manager/add-task.js

@@ -852,7 +852,8 @@ async function addTask(
 					: 0;
 			}
 
-			// Add a visual transition to show we're moving to AI generation
+			// Add a visual transition to show we're moving to AI generation - only for CLI
+			if (outputFormat === 'text') {
 				console.log(
 					boxen(
 						chalk.white.bold('AI Task Generation') +
@@ -876,6 +877,7 @@ async function addTask(
 					)
 				);
 				console.log(); // Add spacing
+			}
 
 			// System Prompt - Enhanced for dependency awareness
 			const systemPrompt =