fix(workspace): skip queries for missing jobs

apps/next/tests/component/agent-workspace-shell.test.tsx

@@ -1,11 +1,12 @@
 import { render, screen } from '@testing-library/react';
+import { getFunctionName } from 'convex/server';
 import { describe, expect, it, vi } from 'vitest';
 
 import { AgentWorkspaceShell } from '../../src/components/agent-workspace/agent-workspace-shell';
 
 const { mockUseMutation, mockUseQuery } = vi.hoisted(() => ({
   mockUseMutation: vi.fn(() => vi.fn()),
-  mockUseQuery: vi.fn(() => null),
+  mockUseQuery: vi.fn(),
 }));
 
 vi.mock('convex/react', () => ({
@@ -21,11 +22,29 @@ vi.mock('sonner', () => ({
 }));
 
 describe('AgentWorkspaceShell', () => {
-  it('renders a missing state when the job query returns null', () => {
+  it('renders a missing state and skips dependent queries for a null job', () => {
+    mockUseQuery.mockImplementation((query) =>
+      getFunctionName(query) === 'agentJobs:get' ? null : undefined,
+    );
+
     render(<AgentWorkspaceShell jobId={'job-1' as never} />);
 
     expect(
       screen.getByText('This workspace was not found.'),
     ).toBeInTheDocument();
+    expect(
+      mockUseQuery.mock.calls.map(([query]) => getFunctionName(query)),
+    ).toEqual([
+      'agentJobs:get',
+      'agentJobs:listMessages',
+      'agentJobs:listEvents',
+      'agentJobs:listWorkspaceChanges',
+      'agentJobs:listInteractionRequests',
+      'agentJobs:getWorkspaceUiState',
+    ]);
+    expect(mockUseQuery.mock.calls[0]?.[1]).toEqual({ jobId: 'job-1' });
+    for (let call = 2; call <= 6; call += 1) {
+      expect(mockUseQuery.mock.calls[call - 1]?.[1]).toBe('skip');
+    }
   });
 });