CI : workflow validate.yml, manifeste ci.required:true, garde VITEST, tests isolés

server/db.ts

@@ -1224,6 +1224,8 @@ export async function updateWebImportSourceStatus(
  * Used to prevent duplicate file storage during email import
  */
 export async function findSourceFileByFileName(userId: number, fileName: string): Promise<any | null> {
+  const db = await getDb();
+  if (!db) return null;
   const result = await db.select()
     .from(sourceFiles)
     .where(and(