clan-cli: restructure according to python's module standard

pkgs/clan-cli/clan_cli/__init__.py

@@ -0,0 +1,28 @@
+# !/usr/bin/env python3
+import argparse
+import sys
+
+has_argcomplete = True
+try:
+    import argcomplete
+except ImportError:
+    has_argcomplete = False
+
+from . import admin
+
+
+# this will be the entrypoint under /bin/clan (see pyproject.toml config)
+def main() -> None:
+    parser = argparse.ArgumentParser(description="cLAN tool")
+    subparsers = parser.add_subparsers()
+
+    parser_admin = subparsers.add_parser("admin")
+    admin.register_parser(parser_admin)
+    if has_argcomplete:
+        argcomplete.autocomplete(parser)
+    parser.parse_args()
+    if len(sys.argv) == 1:
+        parser.print_help()
+
+if __name__ == "__main__":
+    main()