feat: 支持工作流对话匿名分享

- 增加免登录公共接口、访客隔离、限流和匿名上传校验

- 分离 SSE 连接与运行生命周期，支持刷新恢复服务端权威状态

- 持久化分享页对话并优化时间线滚动与输入区交互

easyflow-ui-admin/app/src/router/__tests__/public-route-guard.test.ts

@@ -0,0 +1,42 @@
+import { createMemoryHistory, createRouter } from 'vue-router';
+
+import { useAccessStore } from '@easyflow/stores';
+
+import { createPinia, setActivePinia } from 'pinia';
+import { beforeEach, describe, expect, it } from 'vitest';
+
+import { createRouterGuard } from '../guard';
+
+describe('public route guard', () => {
+  beforeEach(() => {
+    setActivePinia(createPinia());
+  });
+
+  it('bypasses stale login state for an anonymous workflow share', async () => {
+    const accessStore = useAccessStore();
+    accessStore.setAccessToken('stale-token');
+    const router = createRouter({
+      history: createMemoryHistory(),
+      routes: [
+        {
+          component: { template: '<div>login</div>' },
+          name: 'Login',
+          path: '/auth/login',
+        },
+        {
+          component: { template: '<div>workflow share</div>' },
+          meta: { ignoreAccess: true, title: 'Workflow Share' },
+          name: 'WorkflowShare',
+          path: '/share/workflow',
+        },
+      ],
+    });
+    createRouterGuard(router);
+
+    await router.push('/share/workflow?shareKey=share-key');
+    await router.isReady();
+
+    expect(router.currentRoute.value.name).toBe('WorkflowShare');
+    expect(router.currentRoute.value.query.shareKey).toBe('share-key');
+  });
+});