feat: initial commit — World Cup stats app with pnpm, Traefik, Docker

Full-stack World Cup web app (1930–2026):
- Next.js 16 + TailwindCSS 4 + GraphQL Yoga + Apollo Client 4 + Drizzle + PostgreSQL 16
- 23 tournaments synced from openfootball/worldcup.json (matches, goals, teams, stadiums, squads, standings)
- Pages: home (live), groups, stats, history, search, /tournaments/[year], /teams/[slug], /players/[name]
- Live match detection via isLive() + Apollo 60 s poll
- pnpm with node-linker=hoisted for Docker compatibility
- docker-compose.yml with Traefik labels (HTTPS redirect, TLS, security middleware)
- docker-compose.dev.yml for local dev (DB only, port 5432 exposed)
- Dockerfile: multi-stage pnpm build, standalone Next.js output, sync script bundled
- .env.example with all required variables documented
- Comprehensive README with local dev, deployment, schema, and GraphQL API reference

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

docker-compose.yml

@@ -0,0 +1,49 @@
+services:
+  app:
+    build: .
+    restart: unless-stopped
+    depends_on:
+      db:
+        condition: service_healthy
+    environment:
+      DATABASE_URL: postgres://wc:${DB_PASSWORD}@db:5432/worldcup
+      NODE_ENV: production
+    labels:
+      - "traefik.enable=${TRAEFIK_ENABLED:-false}"
+      - "traefik.http.middlewares.worldcup-redirect-web-secure.redirectscheme.scheme=https"
+      - "traefik.http.routers.worldcup-web.middlewares=worldcup-redirect-web-secure"
+      - "traefik.http.routers.worldcup-web.rule=Host(`${TRAEFIK_HOST}`)"
+      - "traefik.http.routers.worldcup-web.entrypoints=web"
+      - "traefik.http.routers.worldcup-web-secure.rule=Host(`${TRAEFIK_HOST}`)"
+      - "traefik.http.routers.worldcup-web-secure.tls.certresolver=resolver"
+      - "traefik.http.routers.worldcup-web-secure.entrypoints=web-secure"
+      - "traefik.http.routers.worldcup-web-secure.middlewares=security-headers@file,no-index@file"
+      - "traefik.http.services.worldcup-web-secure.loadbalancer.server.port=3000"
+      - "traefik.docker.network=${NETWORK_NAME}"
+    networks:
+      - compose_network
+
+  db:
+    image: postgres:16-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: worldcup
+      POSTGRES_USER: wc
+      POSTGRES_PASSWORD: ${DB_PASSWORD}
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U wc -d worldcup"]
+      interval: 5s
+      timeout: 5s
+      retries: 10
+    networks:
+      - compose_network
+
+networks:
+  compose_network:
+    name: ${NETWORK_NAME}
+    external: true
+
+volumes:
+  pgdata: