Add columns CAT Shards for _tier_preference and node.roles

Description

👋 howdy!

Hopefully this avoids the XPack-vs-commercial issues surfaced in https://github.com/elastic/elasticsearch/issues/37499. (XY Problem:) I'd like to streamline investigating assigned shard allocation issues related to ILM. As part of flow after https://github.com/elastic/elasticsearch/pull/99612 or Health Report telling you indices are flagged stagnant on migrations.

As part of this, I'd like if CAT Shards would report columns

• the shard's index's index.routing.allocation.include._tier_preference setting used by ILM
• the shard's node's roles in short form

In practice, I usually flag via an aggregated view and then review a table of what'd be the above similar output. For example when cold backs up warm backs up hot:

• <img width="588" height="161" alt="Image" src="https://github.com/user-attachments/assets/8a6c921b-ab93-46c3-8c69-b52f528a595b" />
• <img width="600" height="216" alt="Image" src="https://github.com/user-attachments/assets/ded97ee9-934f-492b-8e5f-47113f3b1047" />

TIA!