首页工作流：输出字段中文展示 + 引用面板滚动修复

- valueSource 契约统一为 { nodeId, field }，替换 modelParamUtils 中 fieldName 旧用法
- 数组模板压缩时记录 __originIndex，叶子字段扁平清单按后端原始索引产出 enumValues
- 模型节点输出项保存时用 responseMapping 中文填充 value，引用展示显示中文
- http 节点输出字段识别 JsonEditor 包裹结构，修正真实数据路径并提取中文 label
- 引用上级节点输出面板超高时内部滚动，避免超出视口被截掉

Co-Authored-By: Claude <noreply@anthropic.com>

src/views/home/components/TemplateCompleteDialog.vue

@@ -76,7 +76,7 @@
 import { ref, computed, watch } from 'vue';
 import { ElMessage } from 'element-plus';
 import ModelSelector from '/@/views/settings/workflow/component/ModelSelector.vue';
-import { stripReadonlyFields, deepClone } from '/@/views/settings/workflow/component/modelParamUtils';
+import { stripReadonlyFields, deepClone, buildModelRequestParamsPath, enrichResponseBodyMapping } from '/@/views/settings/workflow/component/modelParamUtils';
 import { getWorkflowDetail, saveWorkflow } from '/@/api/settings/creation';
 import { getModelManage, updateModelManage } from '/@/api/settings/modelConfigV2';
 
@@ -109,6 +109,13 @@ const systemModelNodeIds = ref<Record<string, boolean>>({});
 
 const modelNodes = computed(() => nodes.value.filter((n) => String(n?.nodeCode || '').toLowerCase() === 'model'));
 
+// 开始节点 id：模板 DSL 与工作流管理 DSL 结构一致（nodeCode === '__start__'），
+// 供 buildModelRequestParamsPath 为「表单展示」字段补 valueSource 指向开始节点
+const getStartNodeId = () => {
+	const sn = nodes.value.find((n) => String(n?.nodeCode || '').toLowerCase() === '__start__');
+	return sn?.id || '';
+};
+
 const canSave = computed(() => {
 	if (!flowName.value.trim()) return false;
 	// 所有模型节点都必须已绑定模型
@@ -162,9 +169,13 @@ const handleModelConfirm = (model: any) => {
 		node.modelConfig.modelId = model.id || '';
 		node.modelConfig.modelName = model.modelName;
 		node.modelConfig.modelType = model.modelType;
-		// 深拷贝模型 requestBodyMapping 作为参数模板，剔除只读字段
-		node.modelConfig.modelRequestParams = stripReadonlyFields(deepClone(model.requestBodyMapping ?? null));
-		node.modelConfig.modelResponseBodyMapping = model.responseBodyMapping ?? null;
+		// 深拷贝模型 requestBodyMapping 作为参数模板，剔除只读字段（strip 会给被压缩的数组模板记 __originIndex）
+		const params = stripReadonlyFields(deepClone(model.requestBodyMapping ?? null));
+		node.modelConfig.modelRequestParams = params;
+		// 后端契约：基于编辑器参数树（含 __originIndex 原始索引）生成全部叶子字段扁平清单，与工作流管理保存一致
+		node.modelConfig.modelRequestParamsPath = buildModelRequestParamsPath(params, getStartNodeId());
+		// 用模型 responseMapping 的中文描述填充 value，供工作流管理「引用上级节点输出」展示中文
+		node.modelConfig.modelResponseBodyMapping = enrichResponseBodyMapping(model.responseBodyMapping, model.responseMapping);
 		// 选中为用户模型，无需再补 API Key
 		systemModelNodeIds.value[node.id] = false;
 		apiKeyInputs.value[node.id] = '';
@@ -249,6 +260,14 @@ const handleSave = async () => {
 		for (const node of modelNodes.value.filter((n) => systemModelNodeIds.value[n.id])) {
 			await convertSystemModel(node);
 		}
+		// 模板 DSL 若缺 modelRequestParamsPath（旧版模板），用现有参数树兜底生成，保证后端拿到契约字段
+		const startNodeId = getStartNodeId();
+		for (const node of modelNodes.value) {
+			const mc = node?.modelConfig;
+			if (mc?.modelRequestParams && !mc.modelRequestParamsPath) {
+				mc.modelRequestParamsPath = buildModelRequestParamsPath(mc.modelRequestParams, startNodeId);
+			}
+		}
 		const flowContent = {
 			...(templateFlowContent.value || {}),
 			nodes: nodes.value,