Initial commit: 3D Viewer application

Features:
- Vue 3 frontend with Three.js/Online3DViewer
- Node.js API with PostgreSQL and Redis
- Python worker for model conversion
- Docker Compose for deployment
- ViewCube navigation with drag rotation and 90° snap
- Cross-section, exploded view, and render settings
- Parts tree with visibility controls

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,168 @@
+version: '3.8'
+
+services:
+  postgres:
+    image: postgres:16-alpine
+    platform: linux/amd64
+    container_name: viewer3d-postgres
+    environment:
+      POSTGRES_USER: viewer
+      POSTGRES_PASSWORD: viewer_password
+      POSTGRES_DB: viewer_db
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ./infrastructure/postgres/init.sql:/docker-entrypoint-initdb.d/init.sql:ro
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U viewer -d viewer_db"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - viewer3d-network
+
+  redis:
+    image: redis:7-alpine
+    platform: linux/amd64
+    container_name: viewer3d-redis
+    command: redis-server --appendonly yes --maxmemory-policy noeviction
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - viewer3d-network
+
+  minio:
+    image: minio/minio:latest
+    platform: linux/amd64
+    container_name: viewer3d-minio
+    command: server /data --console-address ":9001"
+    environment:
+      MINIO_ROOT_USER: minioadmin
+      MINIO_ROOT_PASSWORD: minioadmin
+    ports:
+      - "9000:9000"
+      - "9001:9001"
+    volumes:
+      - minio_data:/data
+    healthcheck:
+      test: ["CMD", "mc", "ready", "local"]
+      interval: 30s
+      timeout: 20s
+      retries: 3
+    networks:
+      - viewer3d-network
+
+  minio-init:
+    image: minio/mc:latest
+    platform: linux/amd64
+    container_name: viewer3d-minio-init
+    depends_on:
+      minio:
+        condition: service_healthy
+    entrypoint: >
+      /bin/sh -c "
+      mc alias set local http://minio:9000 minioadmin minioadmin;
+      mc mb --ignore-existing local/raw-models;
+      mc mb --ignore-existing local/converted-models;
+      mc mb --ignore-existing local/thumbnails;
+      mc anonymous set download local/raw-models;
+      mc anonymous set download local/converted-models;
+      mc anonymous set download local/thumbnails;
+      echo 'Buckets created successfully';
+      exit 0;
+      "
+    networks:
+      - viewer3d-network
+
+  api:
+    build:
+      context: ./api
+      dockerfile: Dockerfile
+    platform: linux/amd64
+    container_name: viewer3d-api
+    ports:
+      - "4000:3000"
+    environment:
+      NODE_ENV: production
+      PORT: 3000
+      DATABASE_URL: postgresql://viewer:viewer_password@postgres:5432/viewer_db
+      REDIS_URL: redis://redis:6379
+      MINIO_ENDPOINT: minio
+      MINIO_PORT: 9000
+      MINIO_PUBLIC_ENDPOINT: ${HOST_IP:-localhost}
+      MINIO_PUBLIC_PORT: 9000
+      MINIO_ACCESS_KEY: minioadmin
+      MINIO_SECRET_KEY: minioadmin
+      MINIO_USE_SSL: "false"
+      CORS_ORIGINS: http://${HOST_IP:-localhost},http://${HOST_IP:-localhost}:80,http://localhost,http://localhost:80,http://localhost:5173
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+      minio-init:
+        condition: service_completed_successfully
+    healthcheck:
+      test: ["CMD", "wget", "-q", "--spider", "http://localhost:3000/api/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+    networks:
+      - viewer3d-network
+
+  worker:
+    build:
+      context: ./worker
+      dockerfile: Dockerfile
+    platform: linux/amd64
+    environment:
+      REDIS_URL: redis://redis:6379
+      DATABASE_URL: postgresql://viewer:viewer_password@postgres:5432/viewer_db
+      MINIO_ENDPOINT: minio:9000
+      MINIO_PUBLIC_ENDPOINT: ${HOST_IP:-localhost}:9000
+      MINIO_ACCESS_KEY: minioadmin
+      MINIO_SECRET_KEY: minioadmin
+      MINIO_USE_SSL: "false"
+      PYOPENGL_PLATFORM: osmesa
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+      minio-init:
+        condition: service_completed_successfully
+    deploy:
+      replicas: 2
+    networks:
+      - viewer3d-network
+
+  frontend:
+    build:
+      context: ./frontend
+      dockerfile: Dockerfile
+      # VITE_API_URL no longer needed - using nginx proxy with relative path /api
+    platform: linux/amd64
+    container_name: viewer3d-frontend
+    ports:
+      - "80:80"
+    depends_on:
+      - api
+    networks:
+      - viewer3d-network
+
+volumes:
+  postgres_data:
+  redis_data:
+  minio_data:
+
+networks:
+  viewer3d-network:
+    driver: bridge