8276e5050a
KnowledgeView and WorkspaceView were passing explicit titles
("Knowledge chat", "Project — Workspace") to createConversation(),
which prevented the backend's auto-title generation from firing
(condition: `not conv_title`). Pass no title so the background
title generator names conversations after their first message.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>