skills: docs + baseline refresh + priority ladder notes (Lode B)
docs/APPS.md gains a Skills app section covering the CLI verb surface
(Lode A), the owner-wide storage under journal/skills/, and the
daily observer (41) + editor (60) talent pair. API baselines are
refreshed: the legacy "skills" entry is gone; skill_observer +
skill_editor appear at the expected priorities in stats, talents-day,
providers, and generators.
Daily priority ladder after this lode:
30 activities_review
40 facet_newsletter
41 skill_observer ← new
50 morning_briefing, todos/daily (pre-existing collision)
55 entities
56 entities_review
57 entity_observer
60 skill_editor ← new
Part of Lode B of the skills-observer-editor refactor.