refactor: remove noisy command logging from action output

Remove the 'commit-check --message' command lines that were being
printed to the action log for every check invocation. The results
are already visible in the job summary and PR comments — the
command echo was debug cruft that created noise, especially when
checking many individual commits in a PR.

Author: shenxianpeng

main.py

@@ -151,7 +151,6 @@ def run_check_command(
 ) -> int:
     """Run commit-check and write both stdout and stderr to the result file."""
     command = ["commit-check"] + args
-    print(" ".join(command))
     result = subprocess.run(
         command,
         input=input_text,
@@ -250,7 +249,6 @@ def run_commit_check() -> int:
                 if emitted_failure_output:
                     cmd_args.append("--no-banner")
                     output_prefix = "\n--- PR Title ---\n"
-                print("--- PR title check ---")
                 rc = run_check_command(
                     cmd_args,
                     result_file,

main_test.py

@@ -152,12 +152,11 @@ def test_with_input_uses_text_mode(self):
         self.assertEqual(mock_run.call_args[1]["input"], "fix: demo")
         self.assertTrue(mock_run.call_args[1]["text"])
 
-    def test_prints_command(self):
+    def test_success_returns_zero(self):
         mock_result = MagicMock(returncode=0, stdout="")
         with patch("main.subprocess.run", return_value=mock_result):
-            with patch("builtins.print") as mock_print:
-                main.run_check_command(["--branch"], io.StringIO())
-        mock_print.assert_called_once_with("commit-check --branch")
+            rc = main.run_check_command(["--branch"], io.StringIO())
+        self.assertEqual(rc, 0)
 
 
 class TestRunPrMessageChecks(unittest.TestCase):