- Simplify inject_replacement_atomic: backspaces via uinput always
- paste_string skips ydotool for non-ASCII text (crashes with 'no matching keycode')
- Use xdotool (X11) or clipboard (xclip) for Vietnamese characters
- Add detailed logging at EVERY fallback step
- Remove dead ydotoold auto-start code (not available in Ubuntu package)
- Start ydotoold automatically so ydotool can handle Vietnamese chars
- Fix xclip clipboard to run as SUDO_USER when daemon is root
- Add detailed input logging for easier debugging