2 Tbsp. vegetable oil
1 tsp. toasted sesame oil
1 (2") piece ginger, peeled and thinly cut into matchsticks
4 garlic cloves, thinly sliced
2 green onions, thinly sliced, plus more for serving
3 (8-oz.) bottles clam juice
1 Tbsp. reduced-sodium soy sauce
4 (6-oz.) mild, firm fish fillets such as hake or halibut
Salt and pepper
4 heads baby bok choy, halved lengthwise
2 cups sugar snap peas
2 tsp. lemon juice
Thinly sliced red chili pepper, for serving (optional)