refactor: date utils and all calls

src/actions/jira-export.ts

@@ -1,6 +1,7 @@
 'use server';
 
 import { getJiraAnalytics } from './jira-analytics';
+import { formatDateForDisplay, getToday } from '@/lib/date-utils';
 
 export type ExportFormat = 'csv' | 'json';
 
@@ -142,7 +143,7 @@ function generateCSV(analytics: JiraAnalytics): string {
   // Header du rapport
   lines.push('# Rapport Analytics Jira');
   lines.push(`# Projet: ${analytics.project.name} (${analytics.project.key})`);
-  lines.push(`# Généré le: ${new Date().toLocaleString('fr-FR')}`);
+  lines.push(`# Généré le: ${formatDateForDisplay(getToday(), 'DISPLAY_LONG')}`);
   lines.push(`# Total tickets: ${analytics.project.totalIssues}`);
   lines.push('');