Copy LICENSE file into generated stub packages

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

main.py

@@ -313,6 +313,11 @@ def generate_package_files(
     )
     (output_dir / "README.md").write_text(readme)
 
+    # Copy LICENSE file from the project root
+    license_src = SCRIPT_DIR / "LICENSE"
+    if license_src.exists():
+        shutil.copy2(license_src, output_dir / "LICENSE")
+
     # Add py.typed marker to each top-level package so mypy recognizes the stubs
     for pkg in top_level_packages:
         (output_dir / pkg / "py.typed").touch()