Update Pattern2 ConfigurationDefaultS3Uri to support custom config paths

- Updated second instance of ConfigurationDefaultS3Uri in template.yaml to use conditional logic
- Now both Pattern2 ConfigurationDefaultS3Uri sections properly support custom config paths
- When Pattern2CustomConfigPath is provided, uses s3://ConfigurationBucket/custom-path/config.yaml
- When empty, falls back to preset configuration from config_library/pattern-2/

All other requested changes (parameter, condition, parameter groups, labels) were already implemented.

Author: EC2 Default User

template.yaml

@@ -895,9 +895,12 @@ Resources:
         AppSyncApiUrl: !GetAtt GraphQLApi.GraphQLUrl
         AppSyncApiArn: !GetAtt GraphQLApi.Arn
         ConfigurationTable: !Ref ConfigurationTable
-        ConfigurationDefaultS3Uri: !Sub 
-          - "s3://${ConfigurationBucket}/config_library/pattern-2/${ConfigPath}/config.yaml"
-          - ConfigPath: !FindInMap [Pattern2ConfigurationMap, !Ref Pattern2Configuration, ConfigPath]
+        ConfigurationDefaultS3Uri: !If
+          - HasPattern2CustomConfigPath
+          - !Sub "s3://${ConfigurationBucket}/${Pattern2CustomConfigPath}/config.yaml"
+          - !Sub 
+            - "s3://${ConfigurationBucket}/config_library/pattern-2/${ConfigPath}/config.yaml"
+            - ConfigPath: !FindInMap [Pattern2ConfigurationMap, !Ref Pattern2Configuration, ConfigPath]
         ConfigLibraryHash: "<CONFIG_LIBRARY_HASH_TOKEN>"
         EnableHITL: !Ref EnableHITL
         SageMakerA2IReviewPortalURL: !If