feat: implement PI core chat timeline

tests/unit/coding-projects-facade.test.ts

@@ -0,0 +1,42 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+const hostApiFetch = vi.hoisted(() => vi.fn());
+
+vi.mock('@/lib/host-api', () => ({ hostApiFetch }));
+
+describe('coding project Host facade', () => {
+  beforeEach(() => vi.clearAllMocks());
+
+  it('uses only the vendor-neutral project metadata routes', async () => {
+    hostApiFetch
+      .mockResolvedValueOnce({ projects: [], activeProjectId: null })
+      .mockResolvedValueOnce({ snapshot: { project: { id: 'project/a' }, config: {} } })
+      .mockResolvedValueOnce({ conversations: [] })
+      .mockResolvedValueOnce({ conversation: { id: 'conversation-1' } });
+    const {
+      createCodingProjectConversation,
+      getCodingProjectConfig,
+      listCodingProjectConversations,
+      listCodingProjects,
+    } = await import('@/lib/coding-projects');
+
+    await listCodingProjects();
+    await getCodingProjectConfig('project/a');
+    await listCodingProjectConversations('project/a');
+    await createCodingProjectConversation({
+      projectId: 'project/a',
+      agentId: 'agent-1',
+      title: '新对话',
+    });
+
+    expect(hostApiFetch.mock.calls).toEqual([
+      ['/api/coding/projects'],
+      ['/api/coding/projects/config?projectId=project%2Fa'],
+      ['/api/coding/projects/conversations?projectId=project%2Fa'],
+      ['/api/coding/projects/conversations', {
+        method: 'POST',
+        body: JSON.stringify({ projectId: 'project/a', agentId: 'agent-1', title: '新对话' }),
+      }],
+    ]);
+  });
+});