Initial project setup with dependencies

- Add .gitignore for Python, macOS, and generated files
- Add requirements.txt with PyYAML dependency

🤖 Generated with [Claude Code](https://claude.ai/code)

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

.gitignore

@@ -0,0 +1,29 @@
+# Generated output
+out/
+*.pdf
+
+# Temporary files
+*.typ.tmp
+temp_*.typ
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+env/
+venv/
+.venv
+
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Editor
+.vscode/
+.idea/
+*.swp
+*.swo
+*~

requirements.txt

@@ -0,0 +1 @@
+pyyaml>=6.0