feat(cli): set prog_name=ci to enable ci shell completion

Invoking `python -m ci_orchestrator` now reports prog_name "ci" — matching
the shell alias — so `--help` reads naturally and click shell completion
keys off the _CI_COMPLETE env var.

src/ci_orchestrator/__main__.py

@@ -58,4 +58,6 @@ cli.add_command(vmware)
 
 
 if __name__ == "__main__":  # pragma: no cover
-    cli()
+    # prog_name="ci" matches the shell alias, so `--help` reads naturally and
+    # shell completion uses the _CI_COMPLETE env var (see scripts/install-ci-alias.sh).
+    cli(prog_name="ci")