Session auto-titler reverts manual rename in Cursor extension

Environment

• IDE: Cursor (Anthropic.claude-code extension)
• macOS

Issue

A chat session is auto-titled with a single ; (semicolon) character. When I rename it manually via the right-side session panel, the rename appears to work but reverts back to ; shortly after (likely on next panel refresh or session reload).

Expected behavior

A manually renamed session title should persist and not be overwritten by the auto-titler.

Reproduction (best guess)

1. Have a session whose first user message contains only ; or starts in a way that the auto-summarizer outputs ;.
2. In the right-side Claude session panel, rename the session to something descriptive (e.g. "eventhaul build").
3. Refresh the panel or reload the window.
4. The title reverts to ;.

Why this matters

• Sessions with bad auto-titles are unfindable in the panel.
• Manual renames are the obvious user remedy. When they don't persist, users can't curate their session history.
• The ~/.claude/projects/<encoded-cwd>/<session-id>.jsonl file does not appear to contain a top-level title field, suggesting the title is auto-derived on display rather than stored persistently after a manual rename.

Suggested fix

Persist manual renames (e.g. in Cursor extension state / sqlite) and prefer the manual rename over the auto-titler when both exist.