kotkan/claude-plugin-inference-arbitrage#10 — a hook file is only counted
if it's referenced by .claude-plugin/hooks.json, executable, or has a
shebang. hooks/hooks.json itself is always excluded regardless, since it
is configuration rather than logic. mask-worktree-audit.py needed no
change: it derives script_loc from the already-filtered hooks[] output.
Bumps plugin.json to 0.6.2 (fix).