[BUG] /rc remote control sync issues — one-way sync + mobile display truncation

Description

Two related issues with remote control (/rc):

Issue 1: One-way sync

Messages sent FROM desktop/mobile app reach the terminal session, but terminal responses don't sync BACK to the app. The connection shows "Remote Control active" but is effectively broken. Requires multiple /rc restarts per session to temporarily fix.

Issue 2: Mobile display truncation

On mobile (Claude app, iOS/Android), the last line of Claude's responses is cut off / not visible. Appears to be a rendering/padding issue in the mobile UI.

Steps to reproduce (Issue 1)

1. Start Claude Code session in terminal
2. Run /rc, connect desktop/mobile app
3. Send message from app → arrives in terminal (works)
4. Terminal responds → response NOT visible in app (broken)
5. App still shows "Remote Control active"

Expected behavior

• Bidirectional sync: both user messages AND Claude responses should appear in both terminal and connected app
• Mobile app should display full response including last line

Environment

• Claude Code v2.1.71
• Windows 11
• Claude Desktop app (latest)
• Claude mobile app (latest)