Extends PR #98250's classic-CLI status-bar upgrades to the Ink TUI:
- tui_gateway/server.py _get_usage() now emits cache_hit_pct,
avg_latency_s, avg_tps (reads the same per-call deque history from
agent/conversation_loop.py; keys omitted when no data — Codex
app-server has no latency, zero cache reads show no %)
- StatusRule renders the three read-outs as width-budgeted tail
segments (breakpoints 96/104/110 cols, lowest priority — they shed
first on narrow terminals)
- display.status_bar.fields (the SAME key the classic CLI honors)
filters TUI segments too: cache_hit, latency, tps, duration,
compressions, bg_tasks, bg_subagents, voice, battery, title,
context_pct, context_detail
- values ride the existing usage payload/ticker; constants between
events so the usage==last dedup keeps suppressing repaints
- 3 new server tests, 5 new TUI tests; full ui-tui suite 1727 green
Teknium
86a2fdc634