refactor(server): adopt uv and modular typed FastAPI structure

pyproject.toml

@@ -0,0 +1,70 @@
+[build-system]
+requires = ["setuptools>=68", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "aquaportal-s2s-client"
+version = "0.1.0"
+description = "FastAPI integration and realtime proxy for the Vocero frontend"
+readme = "s2s-client/README.md"
+requires-python = ">=3.12,<3.13"
+dependencies = [
+  "fastapi==0.115.6",
+  "uvicorn[standard]==0.34.0",
+  "httpx==0.28.1",
+  "python-dotenv==1.2.2",
+  "pydantic==2.13.5",
+  "websockets==17.2",
+]
+
+[dependency-groups]
+dev = [
+  "mypy>=1.16,<2",
+  "pre-commit>=4.4,<5",
+  "pytest>=9,<10",
+  "ruff>=0.12,<1",
+]
+
+[tool.uv]
+required-version = "==0.12.5"
+
+[tool.setuptools.packages.find]
+include = ["s2s_client*"]
+
+[tool.ruff]
+target-version = "py312"
+line-length = 120
+include = ["pyproject.toml", "s2s_client/**/*.py", "s2s-client/server.py", "tests/**/*.py", "scripts/**/*.py"]
+
+[tool.ruff.lint]
+select = ["E4", "E7", "E9", "F", "I", "B", "UP"]
+ignore = ["UP040", "UP046"]
+
+[tool.ruff.format]
+quote-style = "double"
+indent-style = "space"
+line-ending = "auto"
+
+[tool.mypy]
+python_version = "3.12"
+plugins = ["pydantic.mypy"]
+files = ["s2s_client", "s2s-client/server.py"]
+check_untyped_defs = true
+disallow_untyped_defs = true
+no_implicit_optional = true
+strict_equality = true
+warn_redundant_casts = true
+warn_return_any = true
+warn_unused_configs = true
+warn_unused_ignores = true
+show_error_codes = true
+pretty = true
+
+[tool.pydantic-mypy]
+init_typed = true
+warn_untyped_fields = true
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = [".", "s2s-client"]
+