refactor: date utils and all calls

src/lib/backup-utils.ts

@@ -3,6 +3,7 @@ import { exec } from 'child_process';
 import { promisify } from 'util';
 import path from 'path';
 import { createHash } from 'crypto';
+import { formatDateForDisplay, getToday } from './date-utils';
 
 const execAsync = promisify(exec);
 
@@ -184,7 +185,7 @@ export class BackupUtils {
     extra?: { hash?: string; size?: number; previousHash?: string }
   ): Promise<void> {
     try {
-      const date = new Date().toLocaleString('fr-FR');
+      const date = formatDateForDisplay(getToday(), 'DISPLAY_LONG');
       
       let logEntry = `[${date}] ${type.toUpperCase()} BACKUP ${action.toUpperCase()}: ${details}`;