Added confirmation for task overwrite if tasks.json exists.

Slight refactor moving numTasks and outputPath to top with the other variables.  Eliminates duplication, and keeps us from having to check path twice.
Resolves #65

scripts/modules/ui.js

@@ -1052,6 +1052,33 @@ async function displayComplexityReport(reportPath) {
   ));
 }
 
+/**
+ * Confirm overwriting existing tasks.json file
+ * @param {string} tasksPath - Path to the tasks.json file
+ * @returns {Promise<boolean>} - Promise resolving to true if user confirms, false otherwise
+ */
+async function confirmTaskOverwrite(tasksPath) {
+  console.log(boxen(
+    chalk.yellow('It looks like you\'ve already generated tasks for this project.\n') +
+    chalk.yellow('Executing this command will overwrite any existing tasks.'),
+    { padding: 1, borderColor: 'yellow', borderStyle: 'round', margin: { top: 1 } }
+  ));
+  
+  // Use dynamic import to get the readline module
+  const readline = await import('readline');
+  const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout
+  });
+  
+  const answer = await new Promise(resolve => {
+    rl.question(chalk.cyan('Are you sure you wish to continue? (y/N): '), resolve);
+  });
+  rl.close();
+  
+  return answer.toLowerCase() === 'y' || answer.toLowerCase() === 'yes';
+}
+
 // Export UI functions
 export {
   displayBanner,
@@ -1065,4 +1092,5 @@ export {
   displayNextTask,
   displayTaskById,
   displayComplexityReport,
+  confirmTaskOverwrite
 };