feat: mail service

authsession/internal/service/sendemailcode/stub_sender_test.go

@@ -93,6 +93,7 @@ func TestExecuteWithStubSender(t *testing.T) {
 			require.Len(t, attempts, tt.wantRecordedAttempt)
 			assert.Equal(t, common.Email("pilot@example.com"), attempts[0].Input.Email)
 			assert.Equal(t, "654321", attempts[0].Input.Code)
+			assert.Equal(t, "en", attempts[0].Input.Locale)
 		})
 	}
 }