Add validators schema and code templates

src/templates/python.handlebars

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+"""Auto-generated CLI argument parser for {{spec.name}}."""
+
+import argparse
+import sys
+
+__version__ = "{{spec.version}}"
+
+
+def create_parser():
+    """Create and configure the argument parser."""
+    parser = argparse.ArgumentParser(
+        prog="{{spec.name}}",
+        description="{{spec.description}}"
+    )
+    parser.add_argument(
+        "--version",
+        action="version",
+        version="%(prog)s " + __version__
+    )
+
+{{#each spec.globalOptions}}
+{{> option}}
+{{/each}}
+
+{{#each spec.commands}}
+{{> command}}
+{{/each}}
+
+    return parser
+
+
+{{#*inline "option"}}
+    {{#if (eq type "boolean")}}
+    parser.add_argument(
+        "{{name}}",
+        {{#if short}}-{{short}}, {{/if}}
+        action="store_true",
+        help="{{escape description}}"
+    )
+    {{else}}
+    parser.add_argument(
+        "{{name}}",
+        {{#if short}}-{{short}}, {{/if}}
+        type={{toPythonType type}},
+        help="{{escape description}}"
+    )
+    {{/if}}
+{{/inline}}
+
+
+{{#*inline "command"}}
+    {{#if subcommands}}
+    subparsers = parser.add_subparsers(title="commands", dest="command")
+    {{#each subcommands}}
+    {{name}}_parser = subparsers.add_parser("{{name}}", help="{{escape description}}")
+    {{/each}}
+    {{/if}}
+{{/inline}}
+
+
+def main():
+    """Main entry point."""
+    parser = create_parser()
+    args = parser.parse_args()
+
+    if args.command:
+        print("Command:", args.command)
+    else:
+        parser.print_help()
+
+
+if __name__ == "__main__":
+    main()