Remove public prompt version metadata

requirements.go

@@ -119,9 +119,7 @@ type RequirementIssue struct {
 // prompt context. Input and variable entries are sorted by exact name. Issues
 // are deduplicated by code and associated names, then sorted by that tuple.
 // Their descriptions and entry explanations are safe summaries, not
-// machine-readable details. PromptVersion is caller-owned descriptive metadata,
-// not a selection key: nil means no label was declared; a non-nil empty string
-// is explicit.
+// machine-readable details.
 //
 // Complete describes the supported analysis's discovery coverage, not whether
 // requirements are supplied, templates will render, artifacts or schemas are
@@ -133,10 +131,6 @@ type RequirementIssue struct {
 type RequirementInspection struct {
 	// PromptID is the selected exact prompt ID.
 	PromptID string
-	// PromptVersion is the selected definition's descriptive version label and
-	// never participates in prompt selection. Nil means no label was declared; a
-	// non-nil empty string is an explicit label.
-	PromptVersion *string
 	// ProfileID is the selected profile identity; it does not indicate
 	// execution readiness.
 	ProfileID string
@@ -208,7 +202,7 @@ func fromDomainRequirementInspection(inspection *domain.RequirementInspection) *
 		return nil
 	}
 	result := &RequirementInspection{
-		PromptID: inspection.PromptID, PromptVersion: copyRequirementString(inspection.PromptVersion),
+		PromptID:  inspection.PromptID,
 		ProfileID: inspection.ProfileID, Complete: inspection.Complete,
 		Inputs:    make([]InputRequirement, len(inspection.Inputs)),
 		Variables: make([]VariableRequirement, len(inspection.Variables)),