libghostty v0.0.8

Breaking

• Standalone companions: rendering, grid lookups, formatting, and
  encoding moved off Terminal. RenderState with RowIterator /
  CellIterator, GridRef.at, Formatter, KittyGraphics.of, and
  standalone KeyEncoder / MouseEncoder replace their Terminal
  method and getter equivalents.

Added

• Kitty graphics: image and placement lookup with resolved render
  geometry, plus a process-global PNG decoder hook.
• Log callback: process-global sink for the native library's
  internal log output.
• Formatter selection: restrict output to a coordinate region,
  including block selections.
• Terminal data: cursorStyle, isMouseTracking, and Kitty image
  configuration accessors.
• Grid references: hyperlinkUri and pointIn() for OSC 8 lookup
  and coordinate round-tripping.