feat(resources): add item descriptors

[kguzek]

resolves #283

[Copilot]

Pull request overview

This PR updates resource list display to support an optional “descriptor” alongside an item’s primary name, and uses it to remove specialName from Building select-option labels while still showing it in the resource list UI (resolves #283).

Changes:

• Add descriptor?: string | null to ListItem for displaying secondary text next to the name in the resource list.
• Update Buildings metadata mapping so name is only identifier, and specialName is moved into descriptor.
• Update ArlItem rendering to show descriptor in italics next to name when present.

Reviewed changes

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

File	Description
src/features/resources/data/resource-metadata.ts	Adjusts Buildings itemMapper to separate identifier (name) from specialName (descriptor), keeping selects clean.
src/features/abstract-resource-list/types/internal.ts	Extends ListItem type with the new descriptor field and documents intended UI usage.
src/features/abstract-resource-list/components/arl-item.tsx	Renders descriptor next to name in the resource list item UI when non-empty.

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