feat(ui): add cross-provider compliance view (#11912)

ui/components/shared/task-polling-watcher.tsx

@@ -0,0 +1,31 @@
+"use client";
+
+import {
+  CROSS_PROVIDER_PDF_TASK_KIND,
+  crossProviderPdfHandler,
+} from "@/app/(prowler)/compliance/_lib/cross-provider-pdf";
+import { useMountEffect } from "@/hooks/use-mount-effect";
+import {
+  registerTaskKindHandler,
+  resumePendingTasks,
+} from "@/store/task-watcher/store";
+
+// Kind registrations happen at module scope, before any task can settle in
+// this tab. Adding a new watched task kind (integration tests, scan exports,
+// …) is one line here plus a handler next to the feature that owns it.
+registerTaskKindHandler(CROSS_PROVIDER_PDF_TASK_KIND, crossProviderPdfHandler);
+
+/**
+ * Mounted once in the app layout (next to `Toaster`): resumes polling any
+ * backend task persisted as pending by `@/store/task-watcher`, so completion
+ * toasts survive a hard reload. In-session tracking needs no component at
+ * all — `trackAndPollTask` runs its loop at module scope from the
+ * dispatching click handler.
+ */
+export const TaskPollingWatcher = () => {
+  useMountEffect(() => {
+    resumePendingTasks();
+  });
+
+  return null;
+};