Rechnungsdatum und Belegupload ueberarbeiten

src/lib/google-drive.ts

@@ -33,6 +33,7 @@ export function sanitizeDriveFileName(title: string, fallback = "beleg") {
 
 export async function uploadExpenseProofToDrive(input: {
   title: string;
+  invoiceDate: string;
   fileName: string;
   mimeType: string;
   buffer: Buffer;
@@ -41,8 +42,7 @@ export async function uploadExpenseProofToDrive(input: {
   const folderId = process.env.GOOGLE_DRIVE_FOLDER_ID || DEFAULT_DRIVE_FOLDER_ID;
   const extension = input.fileName.includes(".") ? `.${input.fileName.split(".").pop()}` : "";
   const baseName = sanitizeDriveFileName(input.title);
-  const uniqueSuffix = new Date().toISOString().replace(/[-:]/g, "").replace(/\.\d{3}Z$/, "Z");
-  const name = `${baseName}-${uniqueSuffix}${extension}`;
+  const name = `${input.invoiceDate}-${baseName}${extension}`;
 
   const response = await drive.files.create({
     requestBody: {