工作流 valueSource label 契约统一：去节点名前缀 + outputConfig/subConfig 补全

- resolveRefLabel 去掉「节点名.」前缀，valueSource label 只保留字段中文名
- ModelField 引用 tag 展示同步去前缀
- buildOutputConfig（http/form/其它节点）与 serializeSubFlowConfig（subConfig）的
  valueSource 补 label，subConfig 引用上游分支经 outputIndex 查上游字段中文名
- 取消引用改用 delete（避免写空数组），enumValues 按 __originIndex 统一索引

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

src/views/settings/workflow/index.vue

@@ -1110,7 +1110,7 @@ const buildOutputConfig = (node: Node<NodeData>, startNodeId = '') => {
 			const entry = formConfig.find((f: any) => f.field === def.field);
 			const value = entry?.value ?? '';
 			// 勾选「表单展示」的字段：值来自开始节点表单，补 valueSource 标记（后端契约）
-			const valueSource = def.isFormField === true ? [{ nodeId: startNodeId, field: def.field }] : undefined;
+			const valueSource = def.isFormField === true ? [{ nodeId: startNodeId, field: def.field, label: def.label || def.field }] : undefined;
 			if (def.field === 'responseType') {
 				const expand = entry?.expand || [];
 				return {
@@ -1139,7 +1139,7 @@ const buildOutputConfig = (node: Node<NodeData>, startNodeId = '') => {
 				label: f.label || f.field || '',
 				value: f.value ?? '',
 				required: Boolean(f.required),
-				...(fieldName ? { valueSource: [{ nodeId: startNodeId, field: fieldName }] } : {}),
+				...(fieldName ? { valueSource: [{ nodeId: startNodeId, field: fieldName, label: f.label || f.field || fieldName }] } : {}),
 				...(f.type === 'uploadMultiple'
 					? {
 							fieldConstraint: {
@@ -1177,14 +1177,20 @@ const buildOutputConfig = (node: Node<NodeData>, startNodeId = '') => {
 				label: def.label || def.field,
 				// isFormField 字段值在开始节点运行表单，不重复保存（回显从开始节点反查）
 				...(isForm ? {} : { value: entry?.value ?? '' }),
-				...(isForm ? { valueSource: [{ nodeId: startNodeId, field: def.field }] } : {}),
+				...(isForm ? { valueSource: [{ nodeId: startNodeId, field: def.field, label: def.label || def.field }] } : {}),
 			};
 		});
 };
 
 // 子流程节点：编辑器态 subFlowConfig → DSL 保存态 subConfig（runtimeShow → isFormField）
-const serializeSubFlowConfig = (config: SubFlowConfig | null | undefined, node?: Node<NodeData>, startNodeId = '') => {
+const serializeSubFlowConfig = (config: SubFlowConfig | null | undefined, node?: Node<NodeData>, startNodeId = '', outputIndex?: Map<string, { name: string; fields: Map<string, string> }>) => {
 	if (!config || !config.workflowId) return null;
+	// 引用来源 label：字段中文名（不带「节点名.」前缀；无索引/未命中时兜底 field）
+	const resolveRefLabel = (nodeId: string, field: string): string => {
+		const info = outputIndex?.get(nodeId);
+		if (!info) return field;
+		return info.fields.get(field) || field;
+	};
 	// 生成次数（节点库 presetOption 的 maxConcurrency）：勾选表单展示时聚合进开始节点表单，
 	// 此处同步保存到 subConfig，保证 sub_flow 节点自身也带该配置（后端执行时可读）
 	const formConfig = Array.isArray(node?.data?.formConfig) ? node.data.formConfig : [];
@@ -1211,9 +1217,9 @@ const serializeSubFlowConfig = (config: SubFlowConfig | null | undefined, node?:
 			// - 引用上级输出：值来自主工作流上游节点，统一转 field
 			// - 其余：无引用（静态默认值）
 			valueSource: f.runtimeShow
-				? [{ nodeId: startNodeId, field: f.field }]
+				? [{ nodeId: startNodeId, field: f.field, label: f.label || f.field }]
 				: Array.isArray(f.valueSource)
-					? f.valueSource.map((vs: any) => ({ nodeId: vs.nodeId, field: vs.field }))
+					? f.valueSource.map((vs: any) => ({ nodeId: vs.nodeId, field: vs.field, label: resolveRefLabel(vs?.nodeId, vs?.field) }))
 					: null,
 			isFormField: Boolean(f.runtimeShow),
 		})),
@@ -1455,7 +1461,7 @@ const confirmSaveWorkflow = async () => {
 				...(n.data?.postTool ? { postTool: n.data.postTool } : {}),
 				isSaveFile: Boolean(n.data?.isSaveFile),
 				// 子流程节点：序列化引入的工作流配置（含 workflowId 与 isFormField 标记）；其余节点保持 null
-				subConfig: nodeCode === 'sub_flow' ? serializeSubFlowConfig(n.data?.subFlowConfig, n, startNode?.id || '') : null,
+				subConfig: nodeCode === 'sub_flow' ? serializeSubFlowConfig(n.data?.subFlowConfig, n, startNode?.id || '', outputFieldsIndex) : null,
 				modelConfig: {
 					modelId: n.data?.modelConfig?.modelId || '',
 					// 模型名称/类型随工作流保存，供首页补全弹窗展示模型名与「同类型模型」过滤