Add initial project configuration and setup for Reference Board Viewer application. Include EditorConfig for consistent coding styles, pre-commit hooks for linting and formatting, Docker Compose for local development with PostgreSQL and MinIO, and a Nix flake for development environment management. Establish CI/CD pipeline for automated testing and deployment.

backend/pyproject.toml

@@ -0,0 +1,84 @@
+[project]
+name = "webref-backend"
+version = "1.0.0"
+description = "Reference Board Viewer - Backend API"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    "fastapi>=0.115.0",
+    "uvicorn[standard]>=0.32.0",
+    "sqlalchemy>=2.0.0",
+    "alembic>=1.13.0",
+    "pydantic>=2.9.0",
+    "pydantic-settings>=2.6.0",
+    "python-jose[cryptography]>=3.3.0",
+    "passlib[bcrypt]>=1.7.4",
+    "pillow>=11.0.0",
+    "boto3>=1.35.0",
+    "python-multipart>=0.0.12",
+    "httpx>=0.27.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=8.3.0",
+    "pytest-cov>=6.0.0",
+    "pytest-asyncio>=0.24.0",
+    "ruff>=0.7.0",
+]
+
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.ruff]
+# Enable pycodestyle (`E`), Pyflakes (`F`), isort (`I`)
+select = ["E", "F", "I", "W", "N", "UP", "B", "C4", "SIM"]
+ignore = []
+
+# Exclude common paths
+exclude = [
+    ".git",
+    ".ruff_cache",
+    ".venv",
+    "__pycache__",
+    "alembic/versions",
+]
+
+# Same as Black.
+line-length = 100
+
+# Allow unused variables when underscore-prefixed.
+dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
+
+# Target Python 3.12
+target-version = "py312"
+
+[tool.ruff.per-file-ignores]
+"__init__.py" = ["F401"]  # Allow unused imports in __init__.py
+"tests/*" = ["S101"]  # Allow assert in tests
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = "test_*.py"
+python_classes = "Test*"
+python_functions = "test_*"
+addopts = [
+    "--strict-markers",
+    "--tb=short",
+    "--cov=app",
+    "--cov-report=term-missing",
+    "--cov-report=html",
+    "--cov-fail-under=80",
+]
+asyncio_mode = "auto"
+
+[tool.coverage.run]
+source = ["app"]
+omit = ["tests/*", "alembic/*"]
+
+[tool.coverage.report]
+precision = 2
+show_missing = true
+skip_covered = false
+