build: 清理 tinyflow-ui 构建告警

- 收口 Svelte props 响应式引用与 custom element props 声明

- 清理局部未使用样式与类型告警并保持现有业务语义

easyflow-ui-admin/packages/tinyflow-ui/src/utils/workflowNodeFields.test.ts

@@ -897,7 +897,10 @@ describe('workflow node fields', () => {
     expect(normalizedWorkflow.nodes[0]?.data?.parameters?.[0]?.required).toBe(
       true,
     );
-    expect(normalizedWorkflow.nodes[0]?.data?.startFormSchema?.[0]?.key).toBe(
+    expect(
+      (normalizedWorkflow.nodes[0]?.data as Record<string, any> | undefined)
+        ?.startFormSchema?.[0]?.key,
+    ).toBe(
       'user_input',
     );
     expect(normalizedWorkflow.nodes[1]?.data?.parameters).toEqual([]);

easyflow-ui-admin/packages/tinyflow-ui/src/utils/workflowNodeFields.ts

@@ -1237,7 +1237,10 @@ function replaceStartFieldReferenceValue(
   return value;
 }
 
-function collectDownstreamNodeIds(rootNodeId: string, edges: Edge[]) {
+export function collectDownstreamNodeIds(
+  rootNodeId: string,
+  edges: Edge[],
+) {
   const nodeIds = new Set<string>();
 
   const visit = (nodeId: string) => {
@@ -1281,7 +1284,7 @@ export function renameStartFieldReferencesInNodes(
   const oldRefPath = `${normalizedStartNodeId}.${normalizedCurrentKey}`;
   const newRefPath = `${normalizedStartNodeId}.${normalizedNextKey}`;
 
-  const nextNodes = nodes.map((node) => {
+  const nextNodes: Node[] = nodes.map((node) => {
     if (node.id === normalizedStartNodeId) {
       return node;
     }
@@ -1295,7 +1298,7 @@ export function renameStartFieldReferencesInNodes(
     }
     return {
       ...node,
-      data: nextData,
+      data: nextData ?? {},
     };
   });