feat(skills): capture reusable techniques from successful work (#105674)

* feat(skills): capture reusable experience safely

* feat(skills): review completed work for reusable learning

* docs(skills): explain self-learning

* docs: clarify self-learning runtime scope

* fix(skills): harden autonomous workshop reviews

* test(skills): align review prompt fixture

src/process/lanes.ts

@@ -4,6 +4,7 @@ export const enum CommandLane {
   Crestodian = "crestodian",
   Cron = "cron",
   CronNested = "cron-nested",
+  SkillWorkshopReview = "skill-workshop-review",
   Subagent = "subagent",
   Nested = "nested",
 }