Delete internal directory

internal/workflow/errors.go

@@ -1,24 +0,0 @@
-package workflow
-
-import "errors"
-
-// AwaitingHITLError indicates the workflow paused before a HITL node for human approval.
-type AwaitingHITLError struct {
-	RunID     string
-	NodeID    string
-	NodeLabel string
-	Prompt    string
-	Reviewer  string
-}
-
-func (e *AwaitingHITLError) Error() string {
-	if e == nil {
-		return "workflow awaiting human approval"
-	}
-	return "workflow awaiting human approval at node " + e.NodeID
-}
-
-func IsAwaitingHITL(err error) bool {
-	var target *AwaitingHITLError
-	return errors.As(err, &target)
-}