Auto-generated conversation titles ignore conversation language (always English)

Problem

In the Claude Code VS Code extension, auto-generated conversation titles in the session history are always in English, even when the entire conversation is held in a different language (e.g. Russian, Chinese, Arabic, etc.). The title-generation step ignores the language of the conversation it summarizes. There is no setting to control the title language, and /rename is unavailable in the VS Code extension — only per-conversation hover-rename, which means fixing existing titles one by one. For non-English users this makes the history list hard to scan.

Proposed solution

Make the title-generation step produce the title in the same language as the conversation it summarizes (default behavior). Optionally, add an explicit setting for title language (e.g. "match conversation" / a fixed language of choice) so users can override it.