OpenAI wire format: no name on tool messages (opencode/Anthropic rejected it)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -13,6 +13,9 @@ until 1.0, minor versions may contain breaking changes.
 
 ### Fixed
 
+- OpenAI-compatible providers: tool results no longer carry a `name` field. Gateways that
+  translate to Anthropic (opencode) rejected the request with "anthropic-messages cannot
+  preserve named conversation participants".
 - Telegram: the token field is no longer filled in by the browser's password manager, the bot
   token is found in whatever is pasted (also the whole BotFather message), and a wrong format
   gets a clear message instead of "HTTP 404".