Initial commit: Lunar calendar converter project

- Add lunar calendar astronomical calculation engine (lunar_calendar.py)
- Add converter utilities for solar/lunar date conversion
- Add historical era name conversions (chrono_converter.py, converter_with_eras.py)
- Add FastAPI REST API for date conversion services
- Add age calculator using lunar calendar
- Add batch generation script for lunar calendar JSON data
- Add project documentation (CLAUDE.md, pyproject.toml)

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

pyproject.toml

@@ -0,0 +1,16 @@
+[project]
+name = "lunar-converter"
+version = "0.1.0"
+requires-python = ">=3.10"
+dependencies = [
+  "skyfield",
+  "jplephem",
+  "numpy",
+  "fastapi",
+  "uvicorn",
+  "loguru",
+]
+
+[tool.pytest.ini_options]
+addopts = "-q"
+testpaths = ["tests"]