feat: getfilterchips method added to sort options

[roger-in-kiva]

• getFilterChips method added to sortOptions dict
• https://kiva.atlassian.net/browse/MP-1570

[Copilot]

Pull Request Overview

This PR adds a new getFilterChips helper to the sortOptions module to produce UI filter chips based on the selected sort option.

• Implement getFilterChips in sortOptions.ts to return a chip object when sortBy is defined.
• Extend mockAllFacets fixture with a sortOptions array to support the new method.
• Add unit tests for the new getFilterChips behavior in sortOptions.spec.ts.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
@kiva/kv-loan-filters/src/sortOptions.ts	Implement getFilterChips to map sortBy state to a chip object.
@kiva/kv-loan-filters/src/tests/fixtures/mockLoanSearchData.ts	Add sortOptions fixture data so tests can find matching facets.
@kiva/kv-loan-filters/src/tests/sortOptions.spec.ts	Add tests for getFilterChips handling undefined and valid inputs.

Comments suppressed due to low confidence (2)

@kiva/kv-loan-filters/src/tests/sortOptions.spec.ts:88

• Introduce a test for an unknown sortBy value to verify that getFilterChips returns an empty array when no facet matches.

			it('should return chips', () => {

@kiva/kv-loan-filters/src/sortOptions.ts:94

• [nitpick] Add a JSDoc comment to getFilterChips explaining its parameters (loanSearchState, facets) and the shape of the returned chip object for clarity.

	getFilterChips: (loanSearchState, facets) => {