feat: use file-wins mkdocs configs with --refresh; wiki template in mongo-ops style

tests/cli/test_build_wiki.py

@@ -111,6 +111,33 @@ def test_wiki_without_module_flag_ok(
         assert mock_mkdocs_build() is True
 
 
+def test_wiki_existing_config_used_verbatim_without_refresh(
+    cli_runner,
+    mock_mkdocs_build,
+    mock_mkdocs_load_config,
+):
+    with cli_runner.isolated_filesystem():
+        cwd = Path.cwd()
+
+        wiki = cwd / "docs" / "wiki"
+        wiki.mkdir(parents=True)
+        (wiki / "index.md").write_text("# Home", encoding="utf-8")
+
+        config = cwd / "docs" / "mkdocs.wiki.yml"
+        sentinel = "site_name: Custom Wiki\nnav: []\n"
+        config.write_text(sentinel, encoding="utf-8")
+
+        result = cli_runner.invoke(
+            cli,
+            ["build", "--wiki", "--site-name", "Wiki Site"],
+        )
+
+        assert result.exit_code == 0, result.output
+        assert mock_mkdocs_build() is True
+        assert config.read_text(encoding="utf-8") == sentinel
+        assert "Using existing MkDocs config" in result.output
+
+
 def test_missing_wiki_dir_errors(cli_runner, mock_mkdocs_build):
     with cli_runner.isolated_filesystem():
         cwd = Path.cwd()