The hook was built, copied to hooks/dist/, and installed to disk — but
never registered as a PreToolUse entry in settings.json, making the
hooks.workflow_guard config flag permanently inert.
Adds the registration block following the same pattern as the other
community hooks (prompt-guard, read-guard, validate-commit, etc.).
Includes regression test that verifies every JS hook in gsdHooks has a
corresponding command construction and registration block.
Fixes#1767
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>