Goals — compatibility alias for fitness

This skill was renamed to fitness on 2026-07-29. Everything it did lives there unchanged; the ao goals CLI command family keeps its name.

When invoked, apply skills/fitness/SKILL.md exactly as written — this alias adds no behavior, grants no authority, and produces nothing of its own. It exists so existing references and habits keep resolving, and it is deliberately not advertised as a destination.

Physical deletion follows the observed-zero policy: this alias is removed only after a declared observation window shows no remaining use.