refactor(mitglieder): replace legacy status values (passiv/anwärter/ausgetreten/…) with aktiv/kind/jugend/reserve across backend, frontend, and sync

backend/src/types/multer.d.ts

@@ -30,22 +30,22 @@ declare module 'multer' {
 }
 
 declare namespace Express {
+  namespace Multer {
+    interface File {
+      fieldname: string;
+      originalname: string;
+      encoding: string;
+      mimetype: string;
+      size: number;
+      destination: string;
+      filename: string;
+      path: string;
+      buffer: Buffer;
+    }
+  }
+
   interface Request {
-    file?: {
-      fieldname: string;
-      originalname: string;
-      encoding: string;
-      mimetype: string;
-      size: number;
-      buffer: Buffer;
-    };
-    files?: {
-      fieldname: string;
-      originalname: string;
-      encoding: string;
-      mimetype: string;
-      size: number;
-      buffer: Buffer;
-    }[];
+    file?: Multer.File;
+    files?: Multer.File[];
   }
 }