test(main): bump tool-count assertion to 46 for Gap 1 (query_workflow_graph)

CI-only regression on 8e1ec32 — tests_py/test_main.py pinned the
registered-tool count at 45. Gap 1 added query_workflow_graph,
bringing the count to 46. Updated the assertion + added an explicit
inclusion check for the new tool so a later removal fails loudly.

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

Author: cdeust

tests_py/test_main.py

@@ -29,7 +29,7 @@ def test_main_registers_signal_handlers_and_runs(self):
             mock_run.assert_called_once_with(transport="stdio")
 
     def test_mcp_server_has_tools(self):
-        """FastMCP instance should have all 45 tools registered."""
+        """FastMCP instance should have all 46 tools registered."""
         import asyncio
 
         tools = asyncio.run(mcp.list_tools())
@@ -63,7 +63,9 @@ def test_mcp_server_has_tools(self):
         assert "wiki_verify" in tool_names
         assert "unified_search" in tool_names
         assert "change_impact" in tool_names
-        assert len(tool_names) == 45
+        # Gap 1 — typed subgraph query over the workflow graph.
+        assert "query_workflow_graph" in tool_names
+        assert len(tool_names) == 46
 
     def test_mcp_server_name_and_version(self):
         assert mcp.name == "methodology-agent"