Full hierarchy

Fetch the browse hierarchy grouped by game, set, and type.

Use this endpoint to build:

• top-level navigation menus
• browse trees
• game/set/type landing pages

Behavior:

• Returns a hierarchical map with slugs and facets for each node.
• Designed to power browse-first experiences before users type a query.

Good to know:

• This response is cached for longer than regular search to keep navigation fast.