Use non-streaming chat completion for REST endpoint

शिप

17 मार्च 2026 को 4:03 am बजे UTC

लेखक

Kamo

करना

31f21ee

Streaming over REST with blockLast() was producing empty responses because WebClient's SSE parsing doesn't work reliably with bodyToFlux(String.class). Added handleMessageSync() that uses adapter.chatCompletion() (non-streaming) with proper response handling, message persistence, and usage tracking.