feat(FN-4592): complete Step 4 — enable userPaused unpause in detail modal

Fusion-Task-Id: FN-4592
Fusion-Task-Lineage: b013a15e-7cd9-4ba4-b380-22627cefb394

packages/dashboard/app/components/TaskDetailModal.tsx

@@ -1523,9 +1523,11 @@ export function TaskDetailContent({
     }
   }, [task.id, onDuplicateTask, requestClose, addToast, confirm]);
 
+  const isTaskPaused = task.paused || task.userPaused;
+
   const handleTogglePause = useCallback(async () => {
     try {
-      if (task.paused) {
+      if (isTaskPaused) {
         await unpauseTask(task.id, projectId);
         addToast(`Unpaused ${task.id}`, "success");
       } else {
@@ -1536,7 +1538,7 @@ export function TaskDetailContent({
     } catch (err) {
       addToast(getErrorMessage(err), "error");
     }
-  }, [task.id, task.paused, requestClose, addToast]);
+  }, [isTaskPaused, task.id, requestClose, addToast]);
 
   const handleApprovePlan = useCallback(async () => {
     try {
@@ -3341,7 +3343,7 @@ export function TaskDetailContent({
               )}
 
               {/* Actions dropdown — less common operations */}
-              {(task.column !== "triage" || task.status === "awaiting-approval" || canRetryTask || task.paused) && (
+              {(task.column !== "triage" || task.status === "awaiting-approval" || canRetryTask || isTaskPaused) && (
                 <div className="detail-actions-dropdown" ref={actionsMenuRef}>
                   <button
                     className="btn btn-sm"
@@ -3426,7 +3428,7 @@ export function TaskDetailContent({
                           role="menuitem"
                           onClick={() => handleActionsMenuItemClick(handleTogglePause)}
                         >
-                          {task.paused ? "Unpause" : "Pause"}
+                          {isTaskPaused ? "Unpause" : "Pause"}
                         </button>
                       )}
                       {task.column !== "done" && task.paused && task.pausedByAgentId && (

packages/dashboard/app/components/__tests__/TaskDetailModal.definition-actions.test.tsx

@@ -880,6 +880,31 @@ describe("TaskDetailModal", () => {
       expect(screen.getByRole("menuitem", { name: "Unpause" })).toBeTruthy();
     });
 
+    it("renders Unpause for userPaused-only tasks and unpauses once", async () => {
+      const { unpauseTask } = await import("../../api");
+      const mockUnpauseTask = vi.mocked(unpauseTask);
+
+      render(
+        <TaskDetailModal
+          task={makeTask({ id: "FN-001", column: "todo", paused: undefined, userPaused: true })}
+          onClose={noop}
+          onMoveTask={noopMove}
+          onDeleteTask={noopDelete}
+          onMergeTask={noopMerge}
+          onOpenDetail={noopOpenDetail}
+          addToast={noop}
+        />,
+      );
+
+      await userEvent.click(screen.getByRole("button", { name: /actions/i }));
+      await userEvent.click(screen.getByRole("menuitem", { name: "Unpause" }));
+
+      await waitFor(() => {
+        expect(mockUnpauseTask).toHaveBeenCalledTimes(1);
+        expect(mockUnpauseTask).toHaveBeenCalledWith("FN-001", undefined);
+      });
+    });
+
     it("hides Pause/Unpause button for agent-assigned tasks", async () => {
       const { fetchAgent } = await import("../../api");
       const mockFetchAgent = vi.mocked(fetchAgent);