* feat(skills): resolve explicit $skill references on every channel
Explicit $skill-name references from authorized senders now resolve on all
channels, not only WebChat/Control UI, and explicitly referenced skills are
always invoked: disable-model-invocation keeps a skill out of model-initiated
selection but no longer blocks user-initiated explicit references. Hidden
skills carry their SKILL.md path in the injected instruction since the model
cannot discover them from the available-skills prompt.
Part of #123367
* fix(ci): dedupe run-attempt-state vitest lane ownership
Main is red on the full-suite ownership audit from the #123235 x #123363 double-registration race. Keep run-attempt-state.test.ts beside its run-attempt siblings in the extra lane and heal the audit here per the land-onto-red-main policy.
Peter Steinberger
18163ba269