hermes - 💡(How to fix) Fix Terminal UI: input field accumulates/duplicates when terminal window loses focus (Wayland + niri + Kitty)

Steps to reproduce
1. Open Hermes CLI in a Kitty window
2. Start a conversation (or just have the prompt ready)
3. Switch to another window/app (e.g., Chrome) while the Hermes terminal is still open
4. Observe: the input field area in Hermes CLI starts accumulating/adding extra lines visually (as if content is being replayed or duplicated)

Expected behavior
Hermes CLI should redraw cleanly when the window regains focus, showing only the current input state without visual duplication artifacts.

Actual behavior
Input area shows duplicate追加 lines — likely related to _OUTPUT_HISTORY replay logic not being properly suppressed or cleared on focus restoration.

Notes
- Claude Code does NOT exhibit this behavior in the same environment
- The issue appears specifically when switching away from and back to the Hermes terminal window
- Disabling/enabling repaint_delay in Kitty did not resolve it
- Running Ctrl+L (/redraw) manually clears the issue temporarily
- _SESSION_RECAP feature exists to show a summary of activity during unfocus, which may be related to the redraw logic