feat: scaffold fable-mcp Python package

pyproject.toml with mcp[cli]/httpx/python-dotenv deps, entry point
fable-mcp=fable_mcp.server:main, dev deps for testing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

fable-mcp/pyproject.toml

@@ -0,0 +1,24 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "fable-mcp"
+version = "0.1.0"
+description = "MCP server for Fabled Assistant"
+requires-python = ">=3.12"
+dependencies = [
+  "mcp[cli]>=1.0",
+  "httpx>=0.27",
+  "python-dotenv>=1.0",
+]
+
+[project.scripts]
+fable-mcp = "fable_mcp.server:main"
+
+[project.optional-dependencies]
+dev = ["pytest>=8.0", "pytest-asyncio>=0.23", "respx>=0.21"]
+
+[tool.pytest.ini_options]
+asyncio_mode = "auto"
+testpaths = ["tests"]