Refactor AI chat: streaming, tool calls, UI polish

apps/server/src/ai-chat/ai-chat.service.spec.ts

@@ -25,6 +25,7 @@ function createService(conversationOverrides: Record<string, unknown> = {}) {
     {} as never,
     {} as never,
     {} as never,
+    {} as never,
   );
   return { service, conversations };
 }
@@ -82,7 +83,13 @@ describe('AiChatService', () => {
     { abort: false, expectedStatus: 'failed', expectedCode: 'UPSTREAM_ERROR' },
     { abort: true, expectedStatus: 'cancelled', expectedCode: 'CLIENT_ABORTED' },
   ])('流中断后保存已生成内容和 $expectedStatus 状态', async ({ abort, expectedStatus, expectedCode }) => {
-    const conversation = { id: 3, userId: 7, title: '测试', lastMessageAt: null };
+    const conversation = {
+      id: 3,
+      userId: 7,
+      title: '测试',
+      lockedSkillKey: null,
+      lastMessageAt: null,
+    };
     const assistant = {
       id: 12,
       conversationId: 3,
@@ -123,15 +130,25 @@ describe('AiChatService', () => {
       messages as never,
       { save: jest.fn() } as never,
       { transaction: jest.fn(async (callback) => callback(manager)) } as never,
-      { getRuntimeConfig: jest.fn().mockResolvedValue({}) } as never,
+      { getRuntimeConfig: jest.fn().mockResolvedValue({ supportsVision: false }) } as never,
       { listAvailable: jest.fn().mockReturnValue([]) } as never,
       modelStream as never,
+      {
+        requireReadyOwned: jest.fn().mockResolvedValue([]),
+        toModelParts: jest.fn().mockResolvedValue([]),
+        serialize: jest.fn((value) => value),
+      } as never,
     );
     const emitted: Array<{ event: string; data: Record<string, unknown> }> = [];
     const run = service.streamMessage(
       authenticatedUser as never,
       3,
-      '查询',
+      {
+        message: '查询',
+        attachmentIds: [],
+        skillKey: null,
+        clientRequestId: '6a8bc680-3cb5-4f2d-85ee-974974e0f194',
+      },
       abortController.signal,
       (event, data) => emitted.push({ event, data }),
       jest.fn(),