The plugin now registers a pre_tool_call hook, but plugin.yaml still listed
only post_tool_call/on_session_end, so `plugin doctor` warned "registration
adds hook 'pre_tool_call' not listed in provides_hooks" and catalog/capability
listings under-reported what the plugin hooks.
Also: README notes calls without a tool_call_id (execute_code RPC) are not
tracked; a single _owner() helper keys both _pre_call and
_recent_test_tracks so the two can't drift; drop the unused `result`
parameter from the post hook (still absorbed by **_); trim the _pre_call
comment.
ea2f4a688e