feat: 将工作流分享改为独立页面

- 新增无后台布局的工作流分享与失效路由

- 同步分享地址并保留旧链接兼容

- 补充前后端分享链路测试

easyflow-ui-admin/app/src/utils/workflow-share-context.ts

@@ -18,7 +18,7 @@ interface WorkflowShareHeaderOptions {
   requestUrl?: string;
 }
 
-const WORKFLOW_DESIGN_ROUTE = '/ai/workflow/design';
+const WORKFLOW_SHARE_ROUTES = ['/share/workflow', '/ai/workflow/design'];
 const WORKFLOW_SHARE_REQUESTS = [
   ['GET', '/api/v1/workflow/detail'],
   ['GET', '/api/v1/workflow/getRunningParameters'],
@@ -37,7 +37,42 @@ const WORKFLOW_SHARE_REQUESTS = [
  * 从页面地址读取工作流分享密钥，兼容 history 与 hash 路由。
  */
 export function readWorkflowShareKey(url?: string): null | string {
-  return readScopedRouteQueryParam(WORKFLOW_DESIGN_ROUTE, 'shareKey', url);
+  for (const routePath of WORKFLOW_SHARE_ROUTES) {
+    const shareKey = readScopedRouteQueryParam(routePath, 'shareKey', url);
+    if (shareKey) {
+      return shareKey;
+    }
+  }
+  return null;
+}
+
+/**
+ * 将分享解析失败映射为失效页展示原因。
+ */
+export function resolveWorkflowShareFailureReason(
+  error: unknown,
+): 'expired' | 'invalid' {
+  const candidate = error as
+    | undefined
+    | {
+        message?: unknown;
+        response?: {
+          data?: {
+            error?: unknown;
+            message?: unknown;
+          };
+        };
+      };
+  const message = [
+    candidate?.response?.data?.message,
+    candidate?.response?.data?.error,
+    candidate?.message,
+  ]
+    .map((value) => String(value || '').trim())
+    .find(Boolean);
+  return message && (message.includes('过期') || /expired/i.test(message))
+    ? 'expired'
+    : 'invalid';
 }
 
 /**