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>

api/package.json

@@ -0,0 +1,44 @@
+{
+  "name": "viewer3d-api",
+  "version": "1.0.0",
+  "description": "3D Model Viewer API Server",
+  "main": "dist/index.js",
+  "type": "module",
+  "scripts": {
+    "dev": "tsx watch src/index.ts",
+    "build": "tsc",
+    "start": "node dist/index.js",
+    "lint": "eslint src --ext .ts",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "bullmq": "^5.12.0",
+    "cors": "^2.8.5",
+    "dotenv": "^16.4.0",
+    "express": "^4.21.0",
+    "helmet": "^7.1.0",
+    "ioredis": "^5.4.0",
+    "minio": "^8.0.0",
+    "multer": "^2.0.2",
+    "pg": "^8.12.0",
+    "pino": "^9.0.0",
+    "uuid": "^10.0.0",
+    "zod": "^3.23.0"
+  },
+  "devDependencies": {
+    "@types/cors": "^2.8.17",
+    "@types/express": "^4.17.21",
+    "@types/multer": "^2.0.0",
+    "@types/node": "^20.14.0",
+    "@types/pg": "^8.11.6",
+    "@types/uuid": "^10.0.0",
+    "@typescript-eslint/eslint-plugin": "^7.0.0",
+    "@typescript-eslint/parser": "^7.0.0",
+    "eslint": "^8.57.0",
+    "tsx": "^4.16.0",
+    "typescript": "^5.5.0"
+  },
+  "engines": {
+    "node": ">=20.0.0"
+  }
+}