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>

worker/pyproject.toml

@@ -0,0 +1,34 @@
+[project]
+name = "viewer3d-worker"
+version = "1.0.0"
+description = "3D Model Conversion Worker Service"
+requires-python = ">=3.11"
+dependencies = [
+    "redis>=5.0.0",
+    "minio>=7.2.0",
+    "trimesh>=4.4.0",
+    "cascadio>=0.0.13",
+    "pillow>=10.0.0",
+    "pyrender>=0.1.45",
+    "pydantic-settings>=2.0.0",
+    "psycopg[binary]>=3.1.0",
+    "numpy>=1.24.0",
+    "fast-simplification>=0.1.7",
+]
+
+[project.scripts]
+worker = "src.main:main"
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src"]
+
+[tool.ruff]
+line-length = 100
+target-version = "py311"
+
+[tool.ruff.lint]
+select = ["E", "F", "I", "N", "W"]