chore: merge main into branch; resolve ChronikRow conflict

TODO/SECURITY placeholders from main are superseded by the #454 implementation.

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

frontend/src/lib/activity/ChronikErrorCard.svelte.spec.ts

@@ -1,6 +1,6 @@
 import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
-import { page, userEvent } from 'vitest/browser';
+import { page } from 'vitest/browser';
 
 import ChronikErrorCard from './ChronikErrorCard.svelte';
 
@@ -10,7 +10,7 @@ describe('ChronikErrorCard', () => {
 	it('renders the default error message', async () => {
 		render(ChronikErrorCard, { onRetry: vi.fn() });
 		await expect
-			.element(page.getByText('Die Chronik konnte nicht geladen werden.'))
+			.element(page.getByText('Die Aktivitäten konnten nicht geladen werden.'))
 			.toBeInTheDocument();
 	});
 
@@ -27,7 +27,8 @@ describe('ChronikErrorCard', () => {
 	it('calls onRetry when the retry button is clicked', async () => {
 		const onRetry = vi.fn();
 		render(ChronikErrorCard, { onRetry });
-		await userEvent.click(page.getByText('Erneut versuchen'));
+		const btn = (await page.getByText('Erneut versuchen').element()) as HTMLElement;
+		btn.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
 		expect(onRetry).toHaveBeenCalledTimes(1);
 	});