feat(ui): add DataTable and Toaster, drop the legacy Table, fix overlay dialogs

DataTable replaces the 20-line Table scaffold entirely: columns, sorting,
filtering, pagination, selection, bulk actions, comparison layout, sticky
first column, custom HTML cells, and a remote source driven by a `request`
output rather than a function prop (props travel as HTML attributes, so a
function arrives as its own source text).

Toaster replaces the hand-rolled status div: tone icons, actions, hover
pause/resume and a progress bar.

Overlays audit -- Modal and Drawer declared aria-modal="true" but nothing
ever moved focus into the panel, so the @keydown handler on their root
never ran and closeOnEscape did nothing. Focus, focus restore, a Tab trap
and a body scroll lock now live in the reactive runtime, shared by both.

ContextMenu placed pointer menus by subtracting a guessed 340x420 from the
viewport, which pushed every menu that was not that size away from the
pointer; it now positions at the pointer and lets the anchored clamp pull
it back once it can be measured.

The reactive runtime size budget moves 150k -> 175k to cover anchored
overlays, dialog behaviour, the toaster and the DataTable client half.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/compiler/test/__snapshots__/resilience.test.ts.snap

@@ -176,7 +176,10 @@ function __wireSpreadAttrs(value: any): string {
       lowerName === "style" ||
       lowerName === "slot" ||
       lowerName === "data-component" ||
-      lowerName.startsWith("data-wrn")
+      // Internal markers must not leak through a spread -- except the
+      // parent's output handlers, whose whole job is to ride from the mount
+      // onto the view root so the mounting scope can bind them there.
+      (lowerName.startsWith("data-wrn") && !lowerName.startsWith("data-wrn-out-"))
     ) {
       continue;
     }