- load-skill-from-org now only collects #+begin_src lisp blocks that have a
:tangle directive pointing to a runtime .lisp file, excluding tests/ paths.
- validate-lisp-syntax falls back to a basic reader check when
lisp-validator-validate is not yet fboundp, breaking the circular dependency
between the harness loader and the validator skill.
- Verified full boot: 13/13 skills load successfully, including the new
skill-lisp-validator (priority 900) and skill-policy (priority 500).