Terminal interaction (raw mode, incremental redraw, scrolling, mouse, keys)
is a genuine need that pure std cannot reasonably solve, so AGENTS.md §2.1
now exempts ratatui + crossterm for focus-tui only (transitives follow).
Workspace gains the focus-tui member and the 7-crate layout is documented.
- drop focus-cli from workspace members; remove tokio from focus-tools and
focus-harness (sync std I/O); add focus-json to focus-tools
- AGENTS.md: reflect 6-crate layout, focus-cli removal, TUI coming later
- lockfile updated for the new dependency graph
DaiChaoXiong