fix

apps/api/internal/processing/formula_prompt.go

@@ -7,6 +7,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/descrybe/descrybe-v2/apps/api/internal/aiprompts"
 	"github.com/descrybe/descrybe-v2/apps/api/internal/company"
 )
 
@@ -276,6 +277,26 @@ func AppendTitleFormulaSystemOverride(systemTpl string, titleTemplate any) strin
 	return systemTpl + "\n" + titleFormulaSystemOverride
 }
 
+// titlePromptRewriteOverride covers free-form Title section instructions
+// (categories.prompt --- Title ---) that are not structured title_template.
+const titlePromptRewriteOverride = `When the category Title section asks for a new product name or naming formula, "name" MUST be rewritten — never copy the supplier Name unchanged when type/brand/model/color (or other Title cues) are available. Obey the Title section over any "keep short retail title" guidance.`
+
+// AppendTitlePromptRewriteOverride strengthens the system prompt when the
+// category Title role requires a rewrite. No-op when Title does not ask for one.
+func AppendTitlePromptRewriteOverride(systemTpl, categoryPrompt string) string {
+	if !aiprompts.CategoryTitlePromptRequiresRewrite(categoryPrompt) {
+		return strings.TrimSpace(systemTpl)
+	}
+	systemTpl = strings.TrimSpace(systemTpl)
+	if systemTpl == "" {
+		return titlePromptRewriteOverride
+	}
+	if strings.Contains(systemTpl, `"name" MUST be rewritten`) {
+		return systemTpl
+	}
+	return systemTpl + "\n" + titlePromptRewriteOverride
+}
+
 // categoryEnhanceSystemOverlay is appended when categories.prompt (enhance overlay)
 // is active so free-form category copy drives title, description, AND attributes —
 // not description alone — while Title/Description formulas keep structural precedence.