hermes - 💡(How to fix) Fix [Bug]: Desktop: trailing characters lost when sending message without punctuation

Bug Description

In Hermes Desktop, when the user types a message that ends without punctuation and presses Enter, the last few characters are sometimes lost from the sent message. Adding a trailing punctuation mark (e.g. "。" or ".") prevents the issue.

Steps to Reproduce

1. Open Hermes Desktop
2. Type a message ending without punctuation (e.g. 帮我查一下这个bug)
3. Press Enter to send
4. Observe the sent message is missing trailing characters (e.g. 帮我查一下这个bu)

Expected Behavior

The full message text should be sent regardless of trailing punctuation.

Actual Behavior

The last few characters are dropped if there is no trailing punctuation. Adding a period or other punctuation mark at the end makes the message send correctly.

Suspected Root Cause

Likely a race condition in apps/desktop/src/app/chat/composer/index.tsx — the draft state (read via composerPlainText()) may not have fully synced from the contenteditable DOM when submitDraft() fires on Enter keydown. Trailing punctuation may coincidentally trigger a DOM update that resolves the sync before submission.

Environment

• Hermes Desktop (latest release)
• macOS
• Model: mimo-v2.5 (Xiaomi)