feat: add new frontend components, MH batch worker, and gitignore rules

- Add all new Frontend source files (pages, components, hooks, utils)
- Add selenium_MHBatchPaymentCheckWorker.py and MHSinglePaymentCheckWorker.py
- Add install-steps-5-13.sh setup script
- Update .gitignore to exclude runtime/sensitive data (backups, uploads,
  chat-history, keys, downloads, generated .d.ts files) while keeping folders
- Add .gitkeep to preserve empty runtime folders in git

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/Frontend/src/components/ui/selenium-task-banner.jsx

@@ -0,0 +1,35 @@
+import { Loader2, CheckCircle, XCircle } from "lucide-react";
+export const SeleniumTaskBanner = ({ status, message, show, onClear, }) => {
+    if (!show)
+        return null;
+    const getIcon = () => {
+        switch (status) {
+            case "pending":
+                return <Loader2 className="w-5 h-5 animate-spin text-blue-500"/>;
+            case "success":
+                return <CheckCircle className="w-5 h-5 text-green-500"/>;
+            case "error":
+                return <XCircle className="w-5 h-5 text-red-500"/>;
+            default:
+                return null;
+        }
+    };
+    return (<div className="bg-white border border-gray-200 shadow-md rounded-lg p-3 m-4 flex items-start justify-between">
+      <div className="flex items-start gap-3">
+        {getIcon()}
+        <div>
+          <div className="font-medium text-gray-800">
+            {status === "pending"
+            ? "Task In Progress"
+            : status === "success"
+                ? "Task Completed"
+                : "Task Error"}
+          </div>
+          <p className="text-gray-600 text-sm">{message}</p>
+        </div>
+      </div>
+      <button onClick={onClear} className="text-sm text-gray-500 hover:text-gray-800">
+        ✕
+      </button>
+    </div>);
+};