fix(sagemaker): Use SpaceSettingsSummary.AppType instead of App.AppType

[bhavya2109sharma]

Problem

• Fixes crash when connecting to spaces that have been stopped for long

• The code was incorrectly accessing node.spaceApp.App.AppType, but the App object is undefined for spaces stopped for long as it deletes the App resource . This caused below error

Error running command aws.smus.openRemoteConnection: Remote connection failed: Cannot read properties of undefined (reading 'AppType'). This is likely caused by the extension that contributes aws.smus.openRemoteConnection.

Solution

Changed to use node.spaceApp.SpaceSettingsSummary.AppType instead, which -

• Is always available (part of space configuration, not runtime state)
• Contains the correct AppType value needed for start/stop operations
• SpaceSettingsSummary comes from ListSpaces API call and it will always returns SpaceSettingsSummary as part of the SpaceDetails.
• AppType is a required field in SpaceSettingsSummary because every SageMaker space must have an application type (JupyterLab or CodeEditor).

---

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[github-actions]

• This pull request implements a feat or fix, so it must include a changelog entry (unless the fix is for an unreleased feature). Review the changelog guidelines.
  • Note: beta or "experiment" features that have active users should announce fixes in the changelog.
  • If this is not a feature or fix, use an appropriate type from the title guidelines. For example, telemetry-only changes should use the telemetry type.

[PotatoWKY]

make sense because AppType is SpaceSettingsSummary's property, not App's:

ListSpaces response:

{
   "NextToken": "string",
   "Spaces": [ 
      { 
         "CreationTime": number,
         "DomainId": "string",
         "LastModifiedTime": number,
         "OwnershipSettingsSummary": { 
            "OwnerUserProfileName": "string"
         },
         "SpaceDisplayName": "string",
         "SpaceName": "string",
         "SpaceSettingsSummary": { 
            "AppType": "string",
            "RemoteAccess": "string",
            "SpaceStorageSettings": { 
               "EbsStorageSettings": { 
                  "EbsVolumeSizeInGb": number
               }
            }
         },
         "SpaceSharingSettingsSummary": { 
            "SharingType": "string"
         },
         "Status": "string"
      }
   ]
}

Approved