* fix(skills): expand explicit references on agent turns
Route generic Gateway, CLI, webhook, and local agent turns through the same explicit skill-reference renderer as channel auto-replies. Keep original transcript text, preserve unknown slash behavior, and fail visibly for allowlist-hidden skills.
Maintainer review: scoped Option 1 — generic agent turns expand both $skill-name and leading /skill-name args through shared skill rendering; they do not run the channel command dispatcher, and all other slash commands retain their existing behavior.
* fix(skills): bound explicit reference prompts
* fix(skills): prefer allowed reference collisions
* fix(skills): preserve command invocation boundaries
* fix(skills): reject hidden channel slash commands
* perf(skills): skip literal dollar discovery
Peter Steinberger
572e9f907a