feat: add Django web app, CloudKit sync, dashboard, and game_datetime_utc export

Adds the full Django application layer on top of sportstime_parser:
- core: Sport, Team, Stadium, Game models with aliases and league structure
- scraper: orchestration engine, adapter, job management, Celery tasks
- cloudkit: CloudKit sync client, sync state tracking, sync jobs
- dashboard: staff dashboard for monitoring scrapers, sync, review queue
- notifications: email reports for scrape/sync results
- Docker setup for deployment (Dockerfile, docker-compose, entrypoint)

Game exports now use game_datetime_utc (ISO 8601 UTC) instead of
venue-local date+time strings, matching the canonical format used
by the iOS app.

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

docker-compose.yml

@@ -0,0 +1,113 @@
+services:
+  db:
+    image: postgres:15-alpine
+    container_name: sportstime-db
+    restart: unless-stopped
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_DB: sportstime
+      POSTGRES_USER: sportstime
+      POSTGRES_PASSWORD: ${DB_PASSWORD:-devpassword}
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U sportstime -d sportstime"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - sportstime
+
+  redis:
+    image: redis:7-alpine
+    container_name: sportstime-redis
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - sportstime
+
+  web:
+    build: .
+    container_name: sportstime-web
+    restart: unless-stopped
+    volumes:
+      - .:/app
+      - ./output:/app/output:ro
+    ports:
+      - "8842:8000"
+    environment:
+      - DEBUG=True
+      - SECRET_KEY=dev-secret-key-not-for-production
+      - ALLOWED_HOSTS=localhost,127.0.0.1,10.3.3.11
+      - SESSION_COOKIE_SECURE=False
+      - CSRF_COOKIE_SECURE=False
+      - DATABASE_URL=postgresql://sportstime:${DB_PASSWORD:-devpassword}@db:5432/sportstime
+      - REDIS_URL=redis://redis:6379/0
+      - POSTGRES_HOST=db
+      - POSTGRES_PORT=5432
+      - DJANGO_SUPERUSER_USERNAME=admin
+      - DJANGO_SUPERUSER_PASSWORD=admin
+      - DJANGO_SUPERUSER_EMAIL=admin@localhost
+      - IMPORT_INITIAL_DATA=true
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    networks:
+      - sportstime
+
+  celery-worker:
+    build: .
+    container_name: sportstime-celery-worker
+    restart: unless-stopped
+    volumes:
+      - .:/app
+    environment:
+      - DEBUG=True
+      - SECRET_KEY=dev-secret-key-not-for-production
+      - DATABASE_URL=postgresql://sportstime:${DB_PASSWORD:-devpassword}@db:5432/sportstime
+      - REDIS_URL=redis://redis:6379/0
+      - POSTGRES_HOST=db
+      - POSTGRES_PORT=5432
+    entrypoint: []
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    networks:
+      - sportstime
+    command: celery -A sportstime worker -l INFO --concurrency=2
+
+  celery-beat:
+    build: .
+    container_name: sportstime-celery-beat
+    restart: unless-stopped
+    environment:
+      - DEBUG=True
+      - SECRET_KEY=dev-secret-key-not-for-production
+      - DATABASE_URL=postgresql://sportstime:${DB_PASSWORD:-devpassword}@db:5432/sportstime
+      - REDIS_URL=redis://redis:6379/0
+      - POSTGRES_HOST=db
+      - POSTGRES_PORT=5432
+    entrypoint: []
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    networks:
+      - sportstime
+    command: celery -A sportstime beat -l INFO --scheduler django_celery_beat.schedulers:DatabaseScheduler
+
+volumes:
+  postgres_data:
+
+networks:
+  sportstime:
+    driver: bridge
+