chore(mcp): tighten T1 scaffold per review

- server: pass transport="stdio" explicitly to guard against future
  FastMCP default changes
- test: drop STDIO_TIMEOUT to 10s (a stuck handshake should fail fast)
- test: pin anyio backend to asyncio via fixture so transitive trio
  installs cannot silently double-run the test
- pyproject: add anyio to test extras since the smoke test imports it
  directly (was previously available only via mcp's transitives)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: galshubeli

api/mcp/server.py

@@ -19,7 +19,7 @@ def main() -> None:
 
     Console-script entry point for ``cgraph-mcp``.
     """
-    app.run()
+    app.run(transport="stdio")
 
 
 if __name__ == "__main__":

pyproject.toml

@@ -35,6 +35,7 @@ test = [
     "pytest>=9.0.2,<10.0.0",
     "ruff>=0.11.0,<1.0.0",
     "httpx>=0.28.0,<1.0.0",
+    "anyio>=4.0,<5.0",
 ]
 
 [build-system]

tests/mcp/test_scaffold.py

@@ -20,7 +20,13 @@
 from mcp import ClientSession, StdioServerParameters
 from mcp.client.stdio import stdio_client
 
-STDIO_TIMEOUT = 30  # seconds — prevents CI from hanging if the server fails to start
+STDIO_TIMEOUT = 10  # seconds — prevents CI from hanging if the server fails to start
+
+
+@pytest.fixture
+def anyio_backend() -> str:
+    """Pin the anyio backend to asyncio so transitive trio installs don't double-run tests."""
+    return "asyncio"
 
 
 def test_app_is_importable() -> None: