feat: Add AI agent setup directory (#30115)

* first pass

* ui improvements

* Add agent-setup homepage section with illustration

* Replace agents illustration with combined SVG, adjust sizing

* agent-setup page overhaul

* agent specific pages improvements

* fix: add primary_type field to AgentData type and schema

* chore: fix prettier formatting in agent-setup.css

* claude code improvements

* first pass using mdx for agent files

* finalize switch to mdx

* fix troubleshooting UI

* mobile ui

* format

* codex changes

* first content accuracy pass

* compare agents table improvements

* increase space between sections on agent-setup page

* fix

* address bonk

* feedback

* formatting

* feat: swap homepage section order — agent setup before Build with Cloudflare

* Add agent-setup directory entry for llms.txt and Algolia indexing

Author: mvvmm