hermes - 💡(How to fix) Fix Bug: Desktop on Windows silently truncates end of user input messages

Bug Description

On Hermes Desktop for Windows, the user input message is silently truncated at the end before reaching the agent. The truncation happens at the transport layer - the state.db already contains the incomplete text, so this is not a display/UI rendering issue.

Symptoms

• User types a complete message, the last few characters (typically 2-8 characters) are silently cut off
• The message arrives to the agent mid-sentence, with no error or warning
• Verified in state.db that the stored message is already truncated (not a display issue)

Environment

• OS: Windows 10 (build 26200)
• Hermes Desktop: v0.15.1 (also likely present in v0.15.2)

Workarounds

1. Adding trailing padding like ...... prevents the truncation (the bug consumes the padding instead of real content)
2. CLI mode is not affected - only Desktop
3. Short messages under ~100 chars are not affected

Steps to Reproduce

1. Open Hermes Desktop on Windows
2. Type a medium-length message (200-500 characters, Chinese text triggers it reliably)
3. Send
4. Message arrives with last few characters missing

Expected Behavior

Full user input is preserved and sent to the agent session.

Actual Behavior

Trailing bytes are silently dropped.

Suspected Cause

A null-byte, encoding boundary, or fixed-size buffer issue in the IPC layer between Desktop Electron frontend and the Python backend process.