added mcp server code

tests/cli/conftest.py

@@ -1,7 +1,7 @@
-from pathlib import Path
-from typing import Callable
-
+import json
 import pytest
+from pathlib import Path
+
 from click.testing import CliRunner
 
 
@@ -65,3 +65,47 @@ def mock_mkdocs_serve(monkeypatch):
         fake_serve,
     )
     return lambda: called["value"]
+
+@pytest.fixture
+def fake_mcp_docs(tmp_path: Path) -> Path:
+    """
+    Create a minimal valid MCP bundle in mcp_docs/.
+    """
+    mcp_root = tmp_path / "mcp_docs"
+    modules_dir = mcp_root / "modules"
+    modules_dir.mkdir(parents=True)
+
+    (mcp_root / "index.json").write_text(
+        json.dumps({"project": "test", "type": "docforge-model"}),
+        encoding="utf-8",
+    )
+
+    (mcp_root / "nav.json").write_text(
+        json.dumps([]),
+        encoding="utf-8",
+    )
+
+    (modules_dir / "test.mod.json").write_text(
+        json.dumps({"module": "test.mod", "content": {}}),
+        encoding="utf-8",
+    )
+
+    return mcp_root
+
+
+@pytest.fixture
+def mock_mcp_server_run(monkeypatch):
+    """
+    Mock MCPServer.run so no real server is started.
+    """
+    called = {"value": False}
+
+    def fake_run(self, transport="streamable-http"):
+        called["value"] = True
+
+    monkeypatch.setattr(
+        "docforge.servers.MCPServer.run",
+        fake_run,
+    )
+
+    return lambda: called["value"]