Spec covers the new `crates/maestro-tui/` crate gated on a `tui` feature of
the umbrella binary: ratatui + vt100, sidebar/tab/pane components, configurable
keymap (defaults are defaults), first-class mouse, vim-buffer mental model.
Goals + non-goals; v1 ships tabs-only, v1.5 enables splits on the same layout
tree. Talks only to the local daemon's `/api/*` surface — peer sessions reach
us via the catalog mirror, attach hops are broker-mediated transparently.
naps62-yolo
2b96330534