libghostty v0.0.9

Added

• Back-arrow key mode: TerminalMode.backArrowKeyMode() and
  KeyEncoder.setBackArrowKeyMode() expose DEC mode 67, letting legacy
  Backspace encoding switch between DEL and BS.
• APC buffer limits: Terminal.setApcBufferLimit() and
  Terminal.setKittyApcBufferLimit() configure general and Kitty-specific
  APC payload limits.

Fixed

• Resize callbacks: ghostty_terminal_resize is no longer bound as a
  leaf FFI call, preventing callback crashes when resize emits in-band size
  reports through onWritePty.