Keep Draw rows in place across board changes, and frame lines across the antimeridian

The shape list rebuilt every row on each board change. A name being typed was
lost when a voice mark landed or expired, and a click right after typing only
committed the name, because the button under the pointer was replaced. Rows
are now updated in place, a re-entrant render is deferred, picking a colour or
Esc returns focus to the swatch, and keys on the list no longer reach Draw.

Fly-to on a line across the antimeridian flew to longitude 0. A drawn mark
and a voice mark are no longer deduplicated into one another, so a voice TTL
cannot expire a drawn pin, and a new pin on a hidden one is drawn.

The engine tests now check effects (renderer calls, alpha, notifications on
clear and expiry, the framed centre), not only return values.

src/annotations/drawTool.js

@@ -310,6 +310,9 @@ export function initDrawTool({ viewer, annotations }) {
   };
   const onKey = (event) => {
     if (!active || destroyed || typingElsewhere(event)) return;
+    // Keys on the shape list's own controls are the list's (Esc closes a
+    // colour picker there), not the drawing's.
+    if (markListEl?.contains?.(event.target)) return;
     // Enter goes to finish() once a shape has been started; finish() owns the
     // decision and says WHY it refused. Swallowing the key on a degenerate
     // shape left the person pressing Enter at a silent panel. A focused button