LIG-10246 Add sample-tag comparison selector

[ikondrat]

Summary

• add a searchable multi-select control for sample-tag comparison
• expose controlled comparison-selection props on the distribution panel
• show the selector only for the annotation-classes source when sample tags are available
• keep the panel backward compatible when comparison props are omitted

Stack

• Base: [LIG-10245] Add grouped sample-tag counts query hook #1693 (LIG-10245 grouped query hook)
• This PR: LIG-10246
• Follow-up: LIG-10239 wires collection tags and grouped queries into this control

This split keeps the UI-control change below the requested 150-line threshold.

Testing instructions

1. Check out this branch on top of [LIG-10245] Add grouped sample-tag counts query hook #1693.
2. Run:

   cd lightly_studio_view
   make static-checks

3. In a component host, pass comparisonTagItems, selectedComparisonTagIds, and onComparisonTagIdsChange to DatasetDistributionPanel.
4. Open the Annotation classes source and verify:
   • the trigger reports the selected tag count;
   • search filters the available sample tags;
   • multiple tags can be toggled;
   • omitting the new props leaves the existing panel unchanged.

Validation

• make static-checks (Node 24.13.1): passed

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch kondrat-lig-10246-frontend-sample-tag-comparison-multi-select-control

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