v0.8.3

Added: Today row now breaks tokens into input / output / cache-write / cache-read, surfacing the cached portion (especially cache read) that the headline count excludes (#167).
Added: Chime and macOS notification when an agent blocks mid-task waiting for input (a permission prompt or an AskUserQuestion choice), with a Sound when waiting for input gear-menu toggle; on by default with a per-session cooldown (#169).