Simplify leaderboard rows and defer disruptive refreshes

tests/unit/leaderboard-page-load.test.ts

@@ -0,0 +1,15 @@
+import { expect, it, vi } from 'vitest';
+import { GET } from '../../src/routes/api/leaderboard/+server.js';
+import { load } from '../../src/routes/leaderboard/+page.server.js';
+vi.mock('../../src/routes/api/leaderboard/+server.js', () => ({ GET: vi.fn() }));
+it('requests the same 25-player page on initial load and preserves filters without mutating the page URL', async () => {
+    vi.mocked(GET).mockResolvedValueOnce(new Response(JSON.stringify({ entries: [], limit: 25, offset: 25 })));
+    const url = new URL('http://localhost/leaderboard?game=t5&map=theater&metric=kills&q=123&offset=25&limit=100');
+    const original = url.href;
+    const data = await load({ url });
+    const requested = vi.mocked(GET).mock.calls[0][0].url;
+    expect(requested.searchParams.get('limit')).toBe('25');
+    for (const key of ['game', 'map', 'metric', 'q', 'offset']) expect(requested.searchParams.get(key)).toBe(url.searchParams.get(key));
+    expect(url.href).toBe(original);
+    expect(data.leaderboard.limit).toBe(25);
+});