feat: ATM10-Statistikportal

Statistikportal für den All-the-Mods-10-Server (Minecraft 1.21.1, NeoForge 21.1):

- mod/: serverseitige NeoForge-Mod atmstats – Ereignisse, Live-Zähler, Servergesundheit,
  FTB-Dateien; Outbox auf der Festplatte, signierter gzip-Versand per HTTPS mit Backoff
- backend/: Fastify + PostgreSQL – idempotenter Ingest, Projektionen, Parser für SNBT,
  FTB Quests/Teams, world/stats, world/advancements und latest.log; Ranglisten, Snapshots,
  Retention, öffentliche API, SSE-Live-Updates, Admin mit argon2/CSRF, SFTP-Worker
- web/: Next.js-Dashboard – Übersicht, Ranglisten, Spielerprofile, ATM10, Server,
  Datenquellen, Verwaltung
- shared/: Protokoll v1 und API-Typen; tools/: Simulator, Log-Anonymisierer, RCON-Client
- deploy/: Docker Compose hinter Traefik, Backup; docs/: Architektur, Datenquellen, Betrieb

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/e2e/smoke.spec.ts

@@ -0,0 +1,47 @@
+import { expect, test } from '@playwright/test';
+
+test('overview shows status, totals and leaderboards', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByText('Spieler online')).toBeVisible();
+  await expect(page.getByText('Spielzeit gesamt')).toBeVisible();
+  await expect(page.getByRole('heading', { name: 'Bestenlisten' })).toBeVisible();
+  await expect(page.getByRole('heading', { name: 'Dauerzocker' })).toBeVisible();
+  const overflow = await page.evaluate(() => document.documentElement.scrollWidth > window.innerWidth);
+  expect(overflow).toBe(false);
+});
+
+test('clicking a player opens the profile', async ({ page }) => {
+  await page.goto('/leaderboards/playtime');
+  const first = page.locator('ol li a').first();
+  const name = (await first.textContent())!.trim();
+  await first.click();
+  await expect(page.getByRole('heading', { level: 1, name })).toBeVisible();
+  await expect(page.getByRole('heading', { name: 'Wann gespielt wird' })).toBeVisible();
+});
+
+test('leaderboard periods switch', async ({ page }) => {
+  await page.goto('/leaderboards/deaths');
+  await page.getByRole('link', { name: '7 Tage' }).click();
+  await expect(page).toHaveURL(/period=7d/);
+  await expect(page.getByText('Zuwachs der letzten 7 Tage', { exact: false })).toBeVisible();
+});
+
+test('unknown player shows the not-found page', async ({ page }) => {
+  const res = await page.goto('/players/DiesenSpielerGibtEsNicht');
+  expect(res?.status()).toBe(404);
+  await expect(page.getByText('Hier gibt es nichts abzubauen')).toBeVisible();
+});
+
+test('live endpoint streams server-sent events', async ({ page }) => {
+  await page.goto('/');
+  const first = await page.evaluate(async () => {
+    const ctrl = new AbortController();
+    const res = await fetch('/api/live', { signal: ctrl.signal });
+    const reader = res.body!.getReader();
+    const { value } = await reader.read();
+    ctrl.abort();
+    return { type: res.headers.get('content-type'), text: new TextDecoder().decode(value) };
+  });
+  expect(first.type).toContain('text/event-stream');
+  expect(first.text).toContain(': connected');
+});