首页工作流节点引用多选与保存回显完善：isMultiParameter 全链路透传 + valueSource 数组化/label + 旧 DSL 兼容

- isMultiParameter 节点级开关从节点库透传至引用下拉，支持多选勾选/去重/逐条删除/清空
- valueSource 契约统一为数组并补 label（节点名.字段中文名），覆盖用户引用、表单展示标记与旧 DSL 单对象
- ModelField 递归透传 multi，object/array 嵌套子字段同样支持多选
- 保存/回显兼容旧 DSL 单对象 valueSource，重开自动升级为数组
- modelRequestParamsPath 每项新增 label 字段，后端按 path 重组请求参数

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

src/views/settings/workflow/component/modelParamUtils.ts

@@ -188,7 +188,7 @@ export interface ExposedField {
 	value?: any;
 	defaultValue?: any; // 默认值：首页初始化/回显用
 	fieldConstraint?: any; // 字段约束：上传格式/大小/数量、数字 min/max 等
-	valueSource?: any; // 引用上游节点输出（{ nodeId, field }）；有则首页只读展示
+	valueSource?: any; // 引用上游节点输出（[{ nodeId, field }] 数组，支持多选）；有则首页只读展示
 	multiple?: boolean; // 多文件上传标记
 	refNodeId?: string; // 预留：引用其他节点功能（后续启用）
 }
@@ -232,7 +232,7 @@ export function collectExposedFields(params: any, prefix = ''): ExposedField[] {
 				value: def.value,
 				defaultValue: def.defaultValue,
 				fieldConstraint: def.fieldConstraint && typeof def.fieldConstraint === 'object' ? def.fieldConstraint : undefined,
-				valueSource: def.valueSource && typeof def.valueSource === 'object' ? def.valueSource : undefined,
+				valueSource: Array.isArray(def.valueSource) ? def.valueSource : undefined,
 				multiple: def.multiple || def.fieldType === 'uploadMultiple' || undefined,
 			});
 		}
@@ -243,12 +243,14 @@ export function collectExposedFields(params: any, prefix = ''): ExposedField[] {
 // ===== 模型请求参数扁平清单（modelRequestParamsPath）=====
 // 后端契约：保存时与 modelRequestParams 平级新增 modelRequestParamsPath，
 // 为嵌套模型参数树的全部叶子字段扁平清单（path 文法与 collectExposedFields 一致），
-// 后端按 path 重组请求参数。value 保留当前值；valueSource 规则：
-// - 已有引用配置（用户在设计器配置「引用上游」）→ 原样保留 { nodeId, field }
-// - 无引用但勾选「表单展示」（runtimeShow=true）→ 补 { nodeId: 开始节点id, field: path }
+// 后端按 path 重组请求参数。value 保留当前值；valueSource 规则（统一数组 [{ nodeId, field }]）：
+// - 已有引用配置（用户在设计器配置「引用上游」）→ 原样保留数组
+// - 无引用但勾选「表单展示」（runtimeShow=true）→ 补 [{ nodeId: 开始节点id, field: path }]
 // - 其余 → 不带 valueSource
 export interface ModelRequestParamsPathItem {
 	path: string;
+	// 叶子字段中文名（回显/展示用；无 label 时兜底 path 最后一段字段名）
+	label: string;
 	type: string;
 	required: boolean;
 	value: any;
@@ -290,17 +292,44 @@ function collectAllLeafFields(params: any, prefix = ''): { path: string; def: an
 // 生成 modelRequestParamsPath 扁平清单
 // 所有叶子字段（含对象/数组内部）都支持「引用上游」，valueSource 原样保留；
 // 与编辑器「引用上级输出与表单展示同级」语义一致
-export function buildModelRequestParamsPath(params: any, startNodeId = ''): ModelRequestParamsPathItem[] {
+export function buildModelRequestParamsPath(
+	params: any,
+	startNodeId = '',
+	// 节点输出索引（id → 节点名 + 字段 label），用于补全 valueSource 的引用来源 label
+	outputIndex?: Map<string, { name: string; fields: Map<string, string> }>
+): ModelRequestParamsPathItem[] {
 	const fields = collectAllLeafFields(params);
+	// 引用来源 label：节点名.字段label（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;
+		const fieldLabel = info.fields.get(field) || field;
+		return info.name ? `${info.name}.${fieldLabel}` : fieldLabel;
+	};
 	return fields.map(({ path, def }) => {
-		const valueSource =
-			def.valueSource && typeof def.valueSource === 'object'
-				? def.valueSource // 引用上游：前端编辑态 { nodeId, field } 原样保留
-				: def.runtimeShow === true && startNodeId
-					? { nodeId: startNodeId, field: path } // 勾选「表单展示」：补后端契约 { nodeId, field }
-					: undefined;
+		let valueSource: any;
+		if (Array.isArray(def.valueSource)) {
+			// 引用上游：前端编辑态 [{ nodeId, field }] 数组，逐项补 label
+			valueSource = def.valueSource.map((r: any) =>
+				r && r.nodeId && r.field
+					? { nodeId: r.nodeId, field: r.field, label: resolveRefLabel(r.nodeId, r.field) }
+					: r
+				);
+		} else if (def.valueSource && typeof def.valueSource === 'object') {
+			// 兼容旧 DSL 单对象 { nodeId, field }
+			const r = def.valueSource as any;
+			valueSource = [
+				r && r.nodeId && r.field
+					? { nodeId: r.nodeId, field: r.field, label: resolveRefLabel(r.nodeId, r.field) }
+					: r,
+			];
+		} else if (def.runtimeShow === true && startNodeId) {
+			// 勾选「表单展示」：补后端契约数组（指向开始节点，label 取开始节点字段名）
+			valueSource = [{ nodeId: startNodeId, field: path, label: resolveRefLabel(startNodeId, path) }];
+		}
 		return {
 			path,
+			label: def.label || path.split('.').pop() || '',
 			type: def.type || 'string',
 			required: Boolean(def.required),
 			value: def.value ?? '',
@@ -319,8 +348,10 @@ export function restoreRuntimeShow(params: any, fields: ExposedField[] | null |
 		const cur = resolvePath(params, f.path);
 		if (cur && typeof cur === 'object' && !Array.isArray(cur)) {
 			cur.runtimeShow = true;
-			if (startNodeId && cur.valueSource && typeof cur.valueSource === 'object' && cur.valueSource.nodeId === startNodeId) {
-				delete cur.valueSource;
+			if (startNodeId && Array.isArray(cur.valueSource)) {
+				// 移除指向开始节点（表单展示标记）的引用；全部移除后删除整个 valueSource
+				cur.valueSource = cur.valueSource.filter((r: any) => !(r && r.nodeId === startNodeId));
+				if (cur.valueSource.length === 0) delete cur.valueSource;
 			}
 		}
 	}
@@ -334,7 +365,7 @@ export function attachFormFieldValueSources(params: any, fields: ExposedField[]
 		if (!f || typeof f.path !== 'string') continue;
 		const cur = resolvePath(params, f.path);
 		if (cur && typeof cur === 'object' && !Array.isArray(cur)) {
-			cur.valueSource = { nodeId: startNodeId, field: f.path };
+			cur.valueSource = [{ nodeId: startNodeId, field: f.path }];
 		}
 	}
 }