Fix envelope updates, balance persistence, Get Paid duplication, form readability, and income allocation carryover

src/app/api/auth/delete-account/route.ts

@@ -0,0 +1,25 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { FileStorageService } from '@/lib/fileStorage';
+
+export async function POST(request: NextRequest) {
+  try {
+    const userId = request.headers.get('x-user-id');
+
+    if (!userId) {
+      return NextResponse.json(
+        { error: 'User ID is required' },
+        { status: 401 }
+      );
+    }
+
+    // Delete user account and all data
+    await FileStorageService.deleteUser(userId);
+
+    return NextResponse.json({ success: true, message: 'Account deleted successfully' });
+  } catch (error: any) {
+    return NextResponse.json(
+      { error: error.message || 'Account deletion failed' },
+      { status: 500 }
+    );
+  }
+}