The `embedded` prop was always true, which left the card branch dead;
the component is simply the rail's tab now. The focus comment is one
line, and the default tab says why it is Plot and not the first tab.
Co-Authored-By: Claude Fable 5 <[email protected]>
The handoff drew the toolkit as a 216px card left of the plan. That width
was better spent on the plan and the rail, so the toolkit is now the rail's
first tab — Toolkit / Plot / Journal / History / Assistant — rendered
`embedded` (no card chrome, no heading; the tab is the heading), the grid
is two columns, and the rail grows from 336 to 400px.
Focusing a bed (double-click) switches the rail to Toolkit, because that is
where the plant palette now lives; a single click still selects into Plot.
The phone chrome is untouched: it never used the card.
Co-Authored-By: Claude Fable 5 <[email protected]>