feat(FN-5485): clear userPaused state on manual retry reset with regression

Adds retry-reset logic that clears the user-paused flag on tasks, ensuring they can resume automatically after a retry is triggered, with regression tests covering the behavior across the CLI extension and core manual-reset module.

Fusion-Task-Id: FN-5485

packages/cli/src/__tests__/extension.test.ts

@@ -2522,6 +2522,31 @@ describe("fn pi extension (runnable structured-output regression slice)", () =>
       expectRetryCountersReset(updated);
       expect(updated?.mergeRetries).toBe(0);
     });
+
+    it("clears userPaused when retrying a manually paused failed task", async () => {
+      const store = new TaskStore(tmpDir);
+      await store.init();
+
+      const task = await store.createTask({
+        title: "manually paused failed task",
+        description: "test",
+        column: "todo",
+      });
+      await store.updateTask(task.id, {
+        status: "failed",
+        error: "verification failed",
+        userPaused: true,
+      });
+
+      const retryTool = api.tools.get("fn_task_retry")!;
+      const result = await retryTool.execute("retry-user-paused", { id: task.id }, undefined, undefined, makeCtx(tmpDir));
+
+      expect(result.isError).toBeFalsy();
+      const updated = await store.getTask(task.id);
+      expect(updated?.column).toBe("todo");
+      expect(updated?.status).toBeFalsy();
+      expect(updated?.userPaused).toBeUndefined();
+    });
   });
 
   describe("fn_list_agents", () => {