fix: 优化生成 Prompt 的标题映射，移除技术术语

- 标签约束 → 约束
- 用户自定义内容 → 自定义内容
- 片段内容 → 参考片段
- 片段: xxx → xxx（去掉前缀）
- 智能建议补充 → 补充建议

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("## 用户自定义内容\n\n%s", customContent))
+		parts = append(parts, fmt.Sprintf("## 自定义内容\n\n%s", customContent))
 	}
 
 	// Tag constraints
@@ -219,21 +219,21 @@ func AssemblePrompt(projectName string, customContent string, tagOptions []model
 		for _, opt := range tagOptions {
 			constraints = append(constraints, fmt.Sprintf("- %s", opt.ConstraintText))
 		}
-		parts = append(parts, fmt.Sprintf("## 标签约束\n\n%s", strings.Join(constraints, "\n")))
+		parts = append(parts, fmt.Sprintf("## 约束\n\n%s", strings.Join(constraints, "\n")))
 	}
 
 	// Snippets
 	if len(snippets) > 0 {
 		var snippetParts []string
 		for _, s := range snippets {
-			snippetParts = append(snippetParts, fmt.Sprintf("--- 片段: %s ---\n%s", s.Name, s.Content))
+			snippetParts = append(snippetParts, fmt.Sprintf("--- %s ---\n%s", s.Name, s.Content))
 		}
-		parts = append(parts, fmt.Sprintf("## 片段内容\n\n%s", strings.Join(snippetParts, "\n\n")))
+		parts = append(parts, fmt.Sprintf("## 参考片段\n\n%s", strings.Join(snippetParts, "\n\n")))
 	}
 
 	// Suggestions
 	if len(suggestions) > 0 {
-		parts = append(parts, fmt.Sprintf("## 智能建议补充\n\n%s", strings.Join(suggestions, "\n")))
+		parts = append(parts, fmt.Sprintf("## 补充建议\n\n%s", strings.Join(suggestions, "\n")))
 	}
 
 	return strings.Join(parts, "\n\n")