Initial implementation of n8n MCP server

Implements Hybrid MCP Light pattern with:
- 5 curated tools: list_workflows, get_workflow, list_executions, get_execution, trigger_webhook
- API pass-through tool: n8n_api_call for complete coverage
- API reference resource: n8n://api-reference
- Dockerfile and CI workflow for Gitea container registry

pyproject.toml

@@ -0,0 +1,27 @@
+[project]
+name = "n8n-mcp"
+version = "0.1.0"
+description = "Hybrid MCP Light server for n8n API - provides curated tools plus API pass-through"
+readme = "README.md"
+requires-python = ">=3.11"
+dependencies = [
+    "fastmcp>=2.0",
+    "httpx>=0.27",
+    "starlette>=0.40",
+    "uvicorn>=0.30",
+    "python-dotenv>=1.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=8.0",
+    "pytest-asyncio>=0.24",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["."]
+include = ["server.py"]