chore: project scaffolding — Docker, nginx, dependencies

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

docker-compose.yml

@@ -0,0 +1,82 @@
+services:
+  app:
+    build: ./backend
+    env_file: .env
+    ports:
+      - "8000:8000"
+    volumes:
+      - uploads:/app/uploads
+      - exports:/app/exports
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    command: >
+      sh -c "alembic upgrade head && uvicorn app.main:app --host 0.0.0.0 --port 8000"
+
+  worker:
+    build: ./backend
+    env_file: .env
+    volumes:
+      - uploads:/app/uploads
+      - exports:/app/exports
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    deploy:
+      resources:
+        reservations:
+          devices:
+            - driver: nvidia
+              count: 1
+              capabilities: [gpu]
+    command: celery -A app.tasks.celery_app worker --loglevel=info --concurrency=2
+
+  beat:
+    build: ./backend
+    env_file: .env
+    depends_on:
+      redis:
+        condition: service_healthy
+    command: celery -A app.tasks.celery_app beat --loglevel=info
+
+  redis:
+    image: redis:7-alpine
+    ports:
+      - "6379:6379"
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 3s
+      retries: 5
+
+  db:
+    image: postgres:16-alpine
+    env_file: .env
+    ports:
+      - "5432:5432"
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $POSTGRES_USER -d $POSTGRES_DB"]
+      interval: 5s
+      timeout: 3s
+      retries: 5
+
+  nginx:
+    image: nginx:alpine
+    ports:
+      - "80:80"
+    volumes:
+      - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf
+      - ./frontend/dist:/usr/share/nginx/html
+    depends_on:
+      - app
+
+volumes:
+  pgdata:
+  uploads:
+  exports: