Halibut with Curried Okra and Corn

Name: Halibut with Curried Okra and Corn
Ingredients: 3 tablespoons extra-virgin olive oil; 1 tablespoon curry powder; 2 scallions, white and light green parts only, thinly sliced; 1 garlic clove, minced; Salt and freshly ground pepper; 1 pound okra, sliced 1/4 inch thick; 1 pint cherry tomatoes, halved; 2 large ears of corn, kernels cut off; 1 1/2 pounds halibut fillets; 2 tablespoons water; 3 tablespoons chopped celery leaves; 2 tablespoons minced chives; Hot sauce, for serving (optional)