Green Chili and Corn Seafood Chowder

Name: Green Chili and Corn Seafood Chowder
Ingredients: 5 medium Anaheim peppers; 2 tablespoons extra-virgin olive oil; 1 cup diced yellow onion; 2 cloves garlic, (minced); 3 tablespoons unsalted butter; 2 tablespoons all-purpose flour; 4 cups chicken stock; 3 ears corn, (kernels cut off the cob); 1 large russet potato, (peeled and cut into ½” cubes); Kosher salt, (as needed); 1 pound halibut, (or other white fish, cut into 1” cubes); ½ pound 21/25 per pound shrimp, peeled and deveined; 1½ pounds littleneck clams, (scrubbed); ½ cup heavy cream; 1 teaspoon diced chives