fathom-rewire

Reconcile this repo's fathom wiring in place — hooks vs the current template, stale binary paths repointed to the PATH shim, stanza regenerated, index refreshed with a canonical root, then proven by demonstration. Use when doctor or the session line reports wiring drift, after a fathom upgrade, when hooks feel silent, or whenever a repo was wired by hand at an unknown vintage. Knows doctor's known false signals so you don't chase wrong-repo readings.