chore: set legacyAuth list and awsauth plugin order

Author: kuhe

codegen/sdk-codegen/build.gradle.kts

@@ -128,8 +128,8 @@ tasks.register("generate-smithy-build") {
                                     .withMember("packageJson", manifestOverwrites)
                                     .withMember("packageDescription", "AWS SDK for JavaScript "
                                         + clientName + " Client for Node.js, Browser and React Native")
-                                    .withMember("experimentalIdentityAndAuth",
-                                        !nonExperimentalIdentityAndAuthServices.contains(serviceTrait.sdkId))
+                                    .withMember("useLegacyAuth",
+                                        nonExperimentalIdentityAndAuthServices.contains(serviceTrait.sdkId))
                                     .build()))
                     .build()
             projectionsBuilder.withMember(sdkId + "." + version.toLowerCase(), projectionContents)

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

@@ -67,6 +67,13 @@ public final class AddAwsAuthPlugin implements TypeScriptIntegration {
 
     private static final Logger LOGGER = Logger.getLogger(AddAwsAuthPlugin.class.getName());
 
+    @Override
+    public List<String> runAfter() {
+        return List.of(
+            AddEndpointsPlugin.class.getCanonicalName()
+        );
+    }
+
     /**
      * Integration should only be used if the `useLegacyAuth` flag is true.
      */