fix: 将生成 Prompt 中的章节标题自定义内容改为用户输入

frontend/index.html

@@ -339,7 +339,7 @@
             // Custom content
             const customContent = document.getElementById('custom-content').value.trim();
             if (customContent) {
-                parts.push(`## 自定义内容\n\n${customContent}`);
+                parts.push(`## 用户输入\n\n${customContent}`);
             }
 
             // Tag constraints

internal/handlers/builder.go

@@ -210,7 +210,7 @@ func AssemblePrompt(projectName string, customContent string, tagOptions []model
 
 	// Custom content
 	if customContent != "" {
-		parts = append(parts, fmt.Sprintf("## 自定义内容\n\n%s", customContent))
+		parts = append(parts, fmt.Sprintf("## 用户输入\n\n%s", customContent))
 	}
 
 	// Tag constraints