feat: 完善智能体图片聊天与会话恢复

- 增加私有图片上传、绑定、历史回显与生命周期清理

- 支持输入草稿恢复、图片交互和模型图片能力约束

- 修复旧脏会话幂等删除与前端会话恢复

easyflow-ui-admin/app/src/views/ai/agent-chat/agentChatRuntimeManager.test.ts

@@ -0,0 +1,98 @@
+// @vitest-environment happy-dom
+
+import { createPinia, setActivePinia } from 'pinia';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+import { useUserStore } from '@easyflow/stores';
+
+import { clearAgentChatBrowserCache } from '#/utils/agent-chat-cache';
+
+import { sendAgentChat } from './api';
+import { agentChatRuntimeManager } from './agentChatRuntimeManager';
+
+vi.mock('./api', () => ({
+  generateAgentSessionId: vi.fn(),
+  sendAgentChat: vi.fn(),
+  stopAgentChatStream: vi.fn(),
+}));
+
+describe('agentChatRuntimeManager', () => {
+  beforeEach(() => {
+    setActivePinia(createPinia());
+    sessionStorage.clear();
+    vi.clearAllMocks();
+  });
+
+  it('replaces draft image URLs and isolates snapshots by account', async () => {
+    let callbacks: any;
+    vi.mocked(sendAgentChat).mockImplementation((_data, options) => {
+      callbacks = options;
+      return Promise.resolve() as any;
+    });
+    const userStore = useUserStore();
+    const firstAccount = {
+      avatar: '',
+      id: 'user-1',
+      loginName: 'admin',
+      nickname: '管理员',
+      tenantId: 'tenant-1',
+    };
+    userStore.setUserInfo(firstAccount);
+
+    await agentChatRuntimeManager.start({
+      agentId: 'agent-1',
+      images: [
+        {
+          name: 'draft.png',
+          previewUrl: '/api/v1/agent/media/content?reference=draft%3Aupload-1',
+          status: 'ready',
+          uploadId: 'upload-1',
+        },
+      ],
+      prompt: '识别图片',
+      sessionId: '101',
+    });
+    callbacks.onMessage({
+      data: JSON.stringify({
+        domain: 'SYSTEM',
+        payload: {
+          images: [
+            {
+              imageRef: 'formal:101:201:0:png',
+              name: 'draft.png',
+              previewUrl:
+                '/api/v1/agent/media/content?reference=formal:101:201:0:png',
+            },
+          ],
+        },
+        type: 'INPUT_ACCEPTED',
+      }),
+    });
+
+    const accepted = agentChatRuntimeManager.getSnapshot('101');
+    const userMessage = accepted?.items.find(
+      (item) => item.type === 'message' && item.role === 'user',
+    );
+    expect(
+      userMessage?.type === 'message' ? userMessage.images?.[0] : null,
+    ).toEqual(
+      expect.objectContaining({
+        imageRef: 'formal:101:201:0:png',
+        previewUrl:
+          '/api/v1/agent/media/content?reference=formal:101:201:0:png',
+      }),
+    );
+
+    userStore.setUserInfo({
+      ...firstAccount,
+      id: 'user-2',
+      loginName: 'other',
+      nickname: '其他用户',
+    });
+    expect(agentChatRuntimeManager.getSnapshot('101')).toBeUndefined();
+
+    clearAgentChatBrowserCache(firstAccount);
+    userStore.setUserInfo(firstAccount);
+    expect(agentChatRuntimeManager.getSnapshot('101')).toBeUndefined();
+  });
+});