feat: implement bulk account deletion and enhance account management with folder organization and drag-and-drop functionality

app/api/banking/accounts/route.ts

@@ -44,6 +44,20 @@ export async function DELETE(request: Request) {
   try {
     const { searchParams } = new URL(request.url);
     const id = searchParams.get("id");
+    const ids = searchParams.get("ids");
+
+    if (ids) {
+      // Multiple deletion
+      const accountIds = ids.split(",").filter(Boolean);
+      if (accountIds.length === 0) {
+        return NextResponse.json(
+          { error: "At least one account ID is required" },
+          { status: 400 },
+        );
+      }
+      await accountService.deleteMany(accountIds);
+      return NextResponse.json({ success: true, count: accountIds.length });
+    }
 
     if (!id) {
       return NextResponse.json(