* Refactor database extensions and support migrations for V3.6
Remove `DatabaseFacadeExtensions` and introduce `IWorkflowReferenceQuery` with its default implementation. Implement database schema updates for PostgreSQL, MySQL, and Oracle to enhance compatibility with the V3.6 data structure.
* Remove commented-out code and standardize null default assignment in `IWorkflowDefinitionStore` interface
* Add XML documentation for `DefaultWorkflowReferenceQuery` detailing its purpose and dependencies
* Refactor `WorkflowReferenceUpdater` to support recursive dependency resolution, prevent concurrent updates, and improve reference consistency.
* Simplify `WorkflowReferenceUpdater` by removing topological sorting and redundant dependencies handling.
* Refactor `WorkflowReferenceUpdater` to streamline reference updates, remove redundant logic, and enhance dependency resolution efficiency.
* Refactor `WorkflowReferenceUpdater` to use `HashSet` for updated workflows, reducing potential duplication and improving performance.
* Refactor `WorkflowReferenceUpdater` to introduce topological sorting for correct processing order, improve dependency resolution, and enhance clarity with updated records and comments.
* Introduce `WorkflowDefinitionActivityDescriptorFactory` to simplify `WorkflowDefinitionActivity` descriptor creation and refactor existing components for modularity, clarity, and efficiency.
* Update `WorkflowReferenceUpdater` to use `VersionOptions.Latest` instead of `VersionOptions.LatestOrPublished` for workflow reference resolution.
* Refactor `WorkflowReferenceUpdater` to improve workflow dependency resolution by handling publication states, caching drafts more efficiently, and introducing distinct processing for latest and published versions.
* Refactor workflow publication logic and update SQLite configuration.
Removed unused draft publication logic to simplify workflow reference updates. Updated SQLite persistence configuration in `Elsa.Server.Agents.Web` to use explicit connection strings for improved clarity and maintainability.
* Remove commented-out legacy code in `WorkflowReferenceUpdater` to improve clarity and maintainability.
* Fix formatting by adding a missing newline at EOF in `Directory.Build.props`.
* Prevent infinite recursion in `GetReferencingWorkflowDefinitionIdsAsync` by introducing visited ID tracking. Fix formatting inconsistencies in `WorkflowReferenceUpdater`.
* Update `WorkflowReferenceUpdater` to use `NewGraph` instead of materializing workflows for referencing workflow graphs
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