fix(FN-1349): add tests for resume/start button on terminated agents

packages/dashboard/app/components/__tests__/AgentDetailView.test.tsx

@@ -458,10 +458,34 @@ describe("AgentDetailView", () => {
     );
 
     await waitFor(() => {
+      expect(screen.getByText("Start")).toBeInTheDocument();
       expect(screen.getByText("Delete")).toBeInTheDocument();
     });
   });
 
+  it("shows Start button for terminated agent", async () => {
+    mockFetchAgent.mockResolvedValue(createMockAgent({ state: "terminated" }));
+    mockUpdateAgentState.mockResolvedValue(createMockAgent({ state: "active" }));
+
+    render(
+      <AgentDetailView
+        agentId="agent-001"
+        onClose={vi.fn()}
+        addToast={vi.fn()}
+      />
+    );
+
+    await waitFor(() => {
+      expect(screen.getByText("Start")).toBeInTheDocument();
+    });
+
+    await userEvent.click(screen.getByText("Start"));
+
+    await waitFor(() => {
+      expect(mockUpdateAgentState).toHaveBeenCalledWith("agent-001", "active", undefined);
+    });
+  });
+
   it("shows Delete button for idle agent", async () => {
     mockFetchAgent.mockResolvedValue(createMockAgent({ state: "idle" }));
 

packages/dashboard/app/components/__tests__/AgentListModal.test.tsx

@@ -581,6 +581,15 @@ describe("AgentListModal", () => {
         const deleteButtons = screen.getAllByTitle("Delete");
         expect(deleteButtons.length).toBeGreaterThanOrEqual(2);
       });
+
+      // Verify Start button appears for terminated agent (agent-004)
+      const agentCards = document.querySelectorAll(".agent-card");
+      let terminatedCard: Element | null = null;
+      agentCards.forEach(card => {
+        if (card.textContent?.includes("agent-004")) terminatedCard = card;
+      });
+      const terminatedStartBtn = terminatedCard?.querySelector('[title="Start"]');
+      expect(terminatedStartBtn).toBeTruthy();
     });
 
     it("confirms before deleting agent", async () => {