feat: simplify Claw402 autopilot trading flow

agent/skill_dag_runtime.go

@@ -1,51 +0,0 @@
-package agent
-
-const skillDAGStepField = "_dag_step"
-
-func currentSkillDAGStep(session skillSession) (SkillDAGStep, bool) {
-	dag, ok := getSkillDAG(session.Name, session.Action)
-	if !ok || len(dag.Steps) == 0 {
-		return SkillDAGStep{}, false
-	}
-	stepID := fieldValue(session, skillDAGStepField)
-	if stepID == "" {
-		return dag.Steps[0], true
-	}
-	for _, step := range dag.Steps {
-		if step.ID == stepID {
-			return step, true
-		}
-	}
-	return dag.Steps[0], true
-}
-
-func setSkillDAGStep(session *skillSession, stepID string) {
-	ensureSkillFields(session)
-	if stepID == "" {
-		delete(session.Fields, skillDAGStepField)
-		return
-	}
-	session.Fields[skillDAGStepField] = stepID
-}
-
-func clearSkillDAGStep(session *skillSession) {
-	if session == nil || session.Fields == nil {
-		return
-	}
-	delete(session.Fields, skillDAGStepField)
-}
-
-func advanceSkillDAGStep(session *skillSession, currentStepID string) {
-	dag, ok := getSkillDAG(session.Name, session.Action)
-	if !ok {
-		return
-	}
-	for _, step := range dag.Steps {
-		if step.ID != currentStepID || len(step.Next) == 0 {
-			continue
-		}
-		setSkillDAGStep(session, step.Next[0])
-		return
-	}
-}
-