Initial commit with Email Import Wizard and Task Processor updates

paperless-frontend/src/auth/sessionRedirect.ts

@@ -0,0 +1,27 @@
+import { userManager } from './oidc';
+
+const KEY = 'pm.returnUrl';
+let redirecting = false;
+
+export function saveReturnUrl(path: string): void {
+  if (path === '/login' || path.startsWith('/auth/callback')) return;
+  sessionStorage.setItem(KEY, path);
+}
+
+export function consumeReturnUrl(): string {
+  const v = sessionStorage.getItem(KEY) ?? '/';
+  sessionStorage.removeItem(KEY);
+  return v;
+}
+
+export async function triggerLoginRedirect(): Promise<void> {
+  if (redirecting) return;
+  redirecting = true;
+  saveReturnUrl(window.location.pathname + window.location.search);
+  try {
+    await userManager.removeUser();
+  } catch (err) {
+    console.error('OIDC: removeUser before redirect failed', err);
+  }
+  await userManager.signinRedirect();
+}