migrate-from-ai-sdk

Use when porting an app from the Vercel AI SDK (ai, @ai-sdk/*) to @deuz-sdk/core. Triggers include "migrate from the AI SDK", "replace ai with @deuz-sdk/core", "we use streamText/generateText/useChat and want to switch", removing @ai-sdk/openai or @ai-sdk/anthropic, porting a toUIMessageStreamResponse route, converting ToolLoopAgent to Deuz, or any question about which Deuz API replaces a given AI SDK one.