feat: enhance transaction deletion process with optimistic updates, improved error handling, and restore previous data on failure

app/api/banking/transactions/route.ts

@@ -123,8 +123,10 @@ export async function DELETE(request: Request) {
     return NextResponse.json({ success: true });
   } catch (error) {
     console.error("Error deleting transaction:", error);
+    const errorMessage =
+      error instanceof Error ? error.message : "Failed to delete transaction";
     return NextResponse.json(
-      { error: "Failed to delete transaction" },
+      { error: errorMessage },
       { status: 500 },
     );
   }