Status Bar
Domain: Configuration
Motivation
A TUI element showing session info: model name, token count, cost, turn number.
Concrete Example
Status bar: Model: claude-sonnet-4 | Tokens: 12K/200K | Cost: $0.05 | Turn: 5. Always visible at the bottom of the TUI.
Analogy
A car dashboard - always shows speed, fuel, temperature. The status bar always shows model, tokens, cost.