chore(codegen): add TypeScript Integration for codegen

Author: siddsriv

codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/AddAccountIdEndpointModeRuntimeConfig.java

@@ -6,6 +6,7 @@
  package software.amazon.smithy.aws.typescript.codegen;
 
  import static software.amazon.smithy.aws.typescript.codegen.AwsTraitsUtils.isAwsService;
+ import static software.amazon.smithy.aws.typescript.codegen.AwsTraitsUtils.isSigV4Service;
 
  import java.util.HashMap;
  import java.util.Map;
@@ -65,7 +66,7 @@ public Map<String, Consumer<TypeScriptWriter>> getRuntimeConfigWriters(
      ) {
          ServiceShape service = settings.getService(model);
          Map<String, Consumer<TypeScriptWriter>> runtimeConfigs = new HashMap<>();
-         if (isAwsService(settings, model)) {
+         if (isAwsService(settings, model) || isSigV4Service(settings, model)) {
              Optional<EndpointRuleSetTrait> endpointRuleSetTrait = service.getTrait(EndpointRuleSetTrait.class);
              if (endpointRuleSetTrait.isPresent()) {
                  RuleSetParameterFinder ruleSetParameterFinder = new RuleSetParameterFinder(service);

codegen/smithy-aws-typescript-codegen/src/main/resources/META-INF/services/software.amazon.smithy.typescript.codegen.integration.TypeScriptIntegration

@@ -1,5 +1,6 @@
 software.amazon.smithy.aws.typescript.codegen.AddEndpointsV2ParameterNameMap
 software.amazon.smithy.aws.typescript.codegen.AddAwsRuntimeConfig
+software.amazon.smithy.aws.typescript.codegen.AddAccountIdEndpointModeRuntimeConfig
 software.amazon.smithy.aws.typescript.codegen.AddBuiltinPlugins
 software.amazon.smithy.aws.typescript.codegen.AddAwsAuthPlugin
 software.amazon.smithy.aws.typescript.codegen.AddTokenAuthPlugin