Update data models and dataset site template - #15

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Missing XML comment for publicly visible type or member 'OpportunityType.FacilityUseSlot'

Missing XML comment for publicly visible type or member 'OpportunityType.IndividualFacilityUse'

Missing XML comment for publicly visible type or member 'OpportunityType.FacilityUse'

Missing XML comment for publicly visible type or member 'OpportunityType.ScheduledSession'

Missing XML comment for publicly visible type or member 'OpportunityType.SessionSeries'

Missing XML comment for publicly visible type or member 'OpportunityType'

Missing XML comment for publicly visible type or member 'DatasetSiteMustacheTemplate.CspCompatibleTemplateFileContent'

Missing XML comment for publicly visible type or member 'DatasetSiteMustacheTemplate.SingleTemplateFileContent'

Missing XML comment for publicly visible type or member 'DatasetSiteMustacheTemplate'

Missing XML comment for publicly visible type or member 'DatasetSiteGenerator'