fix

apps/api/internal/processing/category.go

@@ -7,13 +7,21 @@ import (
 )
 
 // categoryDisplayLabel returns the human category name for meta / synthesize /
-// {{category}}. Prefers CategoryName; never falls back to a digits-only unique_id.
+// {{category}}. Prefers taxonomy CategoryName; never falls back to a digits-only
+// unique_id, prompt/formula leakage, or the product title itself.
 func categoryDisplayLabel(result StepResult) string {
 	if n := strings.TrimSpace(result.CategoryName); n != "" {
-		return n
+		// CategoryName comes from categories.name — trust unless prompt leakage.
+		if !isPromptLabelTitle(n) {
+			return n
+		}
 	}
 	cat := strings.TrimSpace(result.Category)
-	if cat == "" || isDigitsOnlyCategoryID(cat) {
+	if cat == "" || isDigitsOnlyCategoryID(cat) || isPromptLabelTitle(cat) {
+		return ""
+	}
+	// Unresolved non-uid token: never surface the product name as {{category}}.
+	if categoryTokenEqualsProductTitle(cat, result.ProcessedName, result.Name) {
 		return ""
 	}
 	return cat
@@ -109,6 +117,10 @@ func normalizeCategoryUniqueID(s string) string {
 	if s == "" || s == "<nil>" || strings.EqualFold(s, "none") {
 		return ""
 	}
+	// Never treat enhance-prompt / formula scaffolding as a category unique_id.
+	if isPromptLabelTitle(s) {
+		return ""
+	}
 	return s
 }
 
@@ -155,7 +167,10 @@ func applyCategoryFromMapped(out *StepResult, maps ...map[string]any) {
 		return
 	}
 	cat := categoryUniqueIDFromMaps(maps...)
-	if cat == "" {
+	// Prompt/formula leakage never becomes Category. Product-title equals are
+	// scrubbed later (scrubCategoryPollution) so a title that matches a real
+	// taxonomy display name can still coerce to unique_id.
+	if cat == "" || isPromptLabelTitle(cat) {
 		return
 	}
 	out.Category = SanitizeText(cat)
@@ -213,6 +228,15 @@ func coerceCategoryToCompanyUniqueID(out *StepResult, namesByUID map[string]stri
 	if cat == "" {
 		return
 	}
+	if isPromptLabelTitle(cat) {
+		out.Category = ""
+		out.CategoryName = ""
+		if out.FieldSources == nil {
+			out.FieldSources = map[string]any{}
+		}
+		out.FieldSources["category"] = "cleared_invalid"
+		return
+	}
 	resolved := resolveCompanyCategoryUniqueID(cat, namesByUID, valid)
 	if resolved == "" || resolved == cat {
 		return
@@ -241,8 +265,10 @@ func filterCategoryIfInvalid(out *StepResult, valid map[string]struct{}) {
 		return
 	}
 	out.Category = ""
-	if out.FieldSources != nil {
-		delete(out.FieldSources, "category")
+	out.CategoryName = ""
+	if out.FieldSources == nil {
+		out.FieldSources = map[string]any{}
 	}
+	out.FieldSources["category"] = "cleared_invalid"
 	out.Notes = append(out.Notes, "category: ignored (unknown unique_id for company)")
 }