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/dateInputField.jsx

@@ -0,0 +1,13 @@
+import { format } from "date-fns";
+import { FormField, FormItem, FormLabel, FormMessage, } from "@/components/ui/form";
+import { DateInput } from "@/components/ui/dateInput";
+import { parseLocalDate } from "@/utils/dateUtils";
+// THIS COMPONENT MADE FOR USING IN FORM FIELD INSIDE ANY FORM CONTROL, NOT AS INPUT FIELD NORMALLY.
+// Here, User can input/paste date in certain format, and also select via calendar
+export function DateInputField({ control, name, label, disableFuture, disablePast, }) {
+    return (<FormField control={control} name={name} render={({ field }) => (<FormItem>
+          <FormLabel>{label}</FormLabel>
+          <DateInput value={field.value ? parseLocalDate(field.value) : null} onChange={(date) => field.onChange(date ? format(date, "yyyy-MM-dd") : null)} disableFuture={disableFuture} disablePast={disablePast}/>
+          <FormMessage />
+        </FormItem>)}/>);
+}