v5.4.0a2

What's Changed

• feat(acp): experimental ACP agent mode (Codex) via the Agent Client Protocol by @pjdoland in #380
• fix(chat): don't apply hard-break newlines to AI-streamed messages by @FelipeRamos-neuro in #385
• feat: Add Proxied Jupyter UI Tools MCP Server by @acook4148 in #398
• chore(deps): patch known-vulnerable npm and Python dependencies by @pjdoland in #399
• fix(chat): require only one Enter to submit after Korean IME composition by @pjy324 in #400
• fix(chat): stop inline-code CSS from leaking into fenced code blocks by @FelipeRamos-neuro in #402

New Contributors

• @FelipeRamos-neuro made their first contribution in #385
• @pjy324 made their first contribution in #400

Full Changelog: v5.3.1...v5.4.0a2