fix: correct pyproject.toml for project-scaffold-cli

- Fixed package name from auto-readme-cli to project-scaffold-cli
- Fixed dependencies to match project-scaffold-cli requirements
- Fixed linting import sorting issues in test files

project_scaffold_cli/templates/python/{{project_slug}}/cli.py.j2

@@ -0,0 +1,13 @@
+"""Main CLI entry point."""
+
+import click
+
+
+@click.command()
+def main():
+    """Main entry point for {{ project_name }}."""
+    click.echo("Welcome to {{ project_name }}!")
+
+
+if __name__ == "__main__":
+    main()