Feature: Add catalog search tool for Guides generator

[rivamaryvillanueva]

Description:
We need to build a new tool that allows the Guides generator to search the catalog and retrieve item links.

Details / Requirements:

• Implement a search function that queries the catalog for items.
• Each result should return the item’s metadata (e.g., name, ID, URL).
• Integrate the search tool with the Guides generator so it can automatically pull links for mentioned items.
• Ensure the tool is scalable for future catalog growth.

Acceptance Criteria:

• Guides generator can query catalog items by keyword.
• Returned results include valid item links.
• Links can be inserted in generated guides.
• Tool is tested and documented.

Additional Notes:
Once this tool is complete, we will backfill existing mentions of items in guides with real catalog links.