[WIP] Fix document list synchronization with active state

[Copilot]

• Investigate existing workspace document tracking and locate where $psEditor.Workspace document data is produced
• Run baseline build/tests to capture current repository state before changes
• Implement minimal code changes so workspace documents reflect open/close and saved/unsaved state from LSP-backed state
• Add or update focused tests for the new behavior
• Run targeted tests for changed areas
• Run final validation and report results

Original prompt

The document list is not in sync with the active state. For instance, if a file is closed or changes from saved to unsaved, it is not reflected in the pseditor.workspace.documents section.

Ensure pseditor.workspace.documents is an accurate match to the editor based on the LSP messages. Use existing state where possible, and augment existing classes with new properties if needed.

The user has attached the following file paths as relevant context:

• .github\copilot-instructions.md

Created from VS Code.

[JustinGrote]

Createdby Mistake