Addressing #1670: Settings reset upon new files only if the fields are incompatible

[glstott]

This addresses bug #1670.

I've implemented a fix so that adding/removing files no longer resets user settings. Now, settings are reset when starting a new session or when a setting requires a field no longer included in the dataset. If a file is replaced with a compatible one, settings will stay. If a file is deleted that is needed, the setting will reset.

In the future, users may want an undo button, so I'll add a new issue to keep track of this ask.

Summary

• Preserved analysis settings across file add/remove updates by keeping resetData() data-only.
• Added compatibility cleanup function so field-backed settings only persist when their selected field still exists in the updated dataset. Any incompatible field-backed settings are then reset.
• Kept compatible settings intact, including fixed scalar styling like custom node color.
• Synced MicrobeTrace component state and GlobalSettingsModel after compatibility cleanup so stale UI selections are not re-applied.
• Updated file removal behavior to avoid resetting settings when all files are deleted; the launch button is disabled until files are added again.
• Added Cypress regression coverage for:
• preserving fixed node color across file updates,
• preserving shape-by when a replacement node file still has the selected field,
• resetting shape-by when the selected field disappears,
• preserving settings after all files are removed.

Verification

• npx.cmd ng build --configuration development --watch=false
• cypress/e2e/ingestion/files-ui.cy.ts: 13 passing.

[dacowan404]

I think this needs revisiting. It addresses the issue but reintroduces another one.
When users load a complete new dataset the variables reset if the field isn't found in the new dataset (ie. new dataset doesn't have state). However if the new dataset does have that field then it doesn't reset it. For instance, the default dataset has node color by variable set to State, if the new dataset has a state field it will use that to color the nodes. My understanding is that these should all be reset to None for a new dataset (except for Link Color By which should default to origin).

[glstott]

Ok! I can remove that part. It was an intentional choice because they said it should reset only when a user starts a new session, not when deleting or adding files to the same session.

[dacowan404]

Maybe we should add it to discussion for the meeting tomorrow. In my view, removing all the files would constitute the start of a new session, but maybe they have a different view.