docs(ai): add AI Chat with useChat guide

Comprehensive guide covering:
- Quick start with chatTask + TriggerChatTransport
- Backend patterns: simple (return streamText), complex (pipeChat),
  and manual (task + ChatTaskPayload)
- Frontend options: dynamic tokens, extra data, self-hosting
- ChatTaskPayload reference
- Added to Writing tasks navigation near Streams

Co-authored-by: Eric Allam <eric@trigger.dev>
This commit is contained in:
Cursor Agent
2026-02-15 13:15:30 +00:00
committed by Eric Allam
parent e517281d94
commit 2161f19895

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