test: verify_only PATCH + verify_result dialog render + store fix

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

__tests__/api/tasks.test.ts

@@ -200,6 +200,35 @@ describe('PATCH /api/tasks/:id', () => {
     })
   })
 
+  // TC-T-12
+  it('updates verify_only alone and returns 200 with verify_only in response', async () => {
+    mockPrisma.task.update.mockResolvedValue({ id: 'task-1', status: 'TO_DO', implementation_plan: null, verify_only: true })
+
+    const res = await patchTask(...makeRequest({ verify_only: true }))
+    const data = await res.json()
+
+    expect(res.status).toBe(200)
+    expect(data.verify_only).toBe(true)
+    expect(mockPrisma.task.update).toHaveBeenCalledWith(
+      expect.objectContaining({ data: { verify_only: true } }),
+    )
+  })
+
+  it('combines verify_only and implementation_plan into one update call', async () => {
+    const plan = 'Verify only: check test results.'
+    mockPrisma.task.update.mockResolvedValue({ id: 'task-1', status: 'TO_DO', implementation_plan: plan, verify_only: true })
+
+    const res = await patchTask(...makeRequest({ implementation_plan: plan, verify_only: true }))
+    const data = await res.json()
+
+    expect(res.status).toBe(200)
+    expect(data).toMatchObject({ implementation_plan: plan, verify_only: true })
+    expect(mockPrisma.task.update).toHaveBeenCalledTimes(1)
+    expect(mockPrisma.task.update).toHaveBeenCalledWith(
+      expect.objectContaining({ data: { implementation_plan: plan, verify_only: true } }),
+    )
+  })
+
   it('returns 400 for malformed JSON', async () => {
     const req = new Request('http://localhost/api/tasks/task-1', {
       method: 'PATCH',