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/ui/COMPONENTS.md

@@ -359,6 +359,15 @@ Reusable preference switcher component.
 - Slots: None
 - Outputs: `theme({ sourceEvent?: Event; value: string | number | boolean | null | object; [key: string]: string | number | boolean | null | object } | string | number | boolean | null | object[])`, `color({ sourceEvent?: Event; value: string | number | boolean | null | object; [key: string]: string | number | boolean | null | object } | string | number | boolean | null | object[])`, `language({ sourceEvent?: Event; value: string | number | boolean | null | object; [key: string]: string | number | boolean | null | object } | string | number | boolean | null | object[])`
 
+### Toaster
+
+Reusable toaster component.
+
+- Mount: `data-component="Toaster"`
+- Props: `color: string = "info"`, `size: string = "default"`, `position: string = "bottom-right"`, `duration: number = 4500`, `max: number = 4`, `pauseOnHover: boolean = true`, `showIcon: boolean = true`, `successIcon: string = ""`, `dangerIcon: string = ""`, `warningIcon: string = ""`, `infoIcon: string = ""`, `closable: boolean = true`, `showProgress: boolean = true`, `closeLabel: string = "Dismiss notification"`, `class: string = ""`
+- Slots: None
+- Outputs: `show({ id: number; message: string; tone: string })`, `dismiss({ id: number; reason: string })`, `action({ id: number; sourceEvent: Event })`
+
 ## Data
 
 ### MetricCard
@@ -554,15 +563,6 @@ Theme-aware, responsive data map component.
 - Slots: `default`
 - Outputs: `select({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`, `change({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`
 
-### DataTable
-
-Theme-aware, responsive data table component.
-
-- Mount: `data-component="DataTable"`
-- Props: `size: string = "default"`, `color: string = "primary"`, `caption: string = "Data Table"`, `columns: unknown[] = []`, `rows: unknown[] = []`, `striped: boolean = true`, `class: string = ""`
-- Slots: `default`
-- Outputs: `sort({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`, `select({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`, `change({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`, `rowClick({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`, `pageChange({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`
-
 ### DragAndDrop
 
 Theme-aware, responsive drag and drop component.
@@ -945,7 +945,7 @@ Open an accessible keyboard-aware action menu from pointer or keyboard context i
 Present responsive modal side or bottom content with focus management, backdrop behavior, slots, and close events.
 
 - Mount: `data-component="Drawer"`
-- Props: `open: boolean = false`, `defaultOpen: boolean = false`, `placement: string = "right"`, `size: string = "md"`, `color: string = "primary"`, `variant: string = "default"`, `title: string = "Drawer"`, `description: string = ""`, `icon: string = ""`, `label: string = "Drawer"`, `closeLabel: string = "Close drawer"`, `showClose: boolean = true`, `closeOnBackdrop: boolean = true`, `closeOnEscape: boolean = true`, `overlay: boolean = true`, `scrollable: boolean = true`, `triggerLabel: string = ""`, `triggerIcon: string = ""`, `class: string = ""`
+- Props: `open: boolean = false`, `defaultOpen: boolean = false`, `placement: string = "right"`, `size: string = "md"`, `color: string = "primary"`, `variant: string = "default"`, `title: string = "Drawer"`, `description: string = ""`, `icon: string = ""`, `label: string = "Drawer"`, `closeLabel: string = "Close drawer"`, `showClose: boolean = true`, `closeOnBackdrop: boolean = true`, `closeOnEscape: boolean = true`, `duration: number = 260`, `overlay: boolean = true`, `scrollable: boolean = true`, `triggerLabel: string = ""`, `triggerIcon: string = ""`, `class: string = ""`
 - Slots: `trigger`, `header`, `default`, `footer`
 - Outputs: `open({ placement: string; sourceEvent: Event })`, `close({ reason: string; placement: string; sourceEvent: Event })`, `cancel({ placement: string; sourceEvent: Event })`
 
@@ -963,7 +963,7 @@ Open an accessible anchored menu with keyboard navigation, item selection, actio
 Present an accessible modal dialog with focus management, confirmation, cancellation, slots, and responsive sizing.
 
 - Mount: `data-component="Modal"`
-- Props: `open: boolean = false`, `defaultOpen: boolean = false`, `title: string = "Modal"`, `description: string = ""`, `icon: string = ""`, `label: string = "Modal dialog"`, `size: string = "md"`, `placement: string = "center"`, `color: string = "primary"`, `variant: string = "default"`, `showClose: boolean = true`, `closeLabel: string = "Close modal"`, `closeOnBackdrop: boolean = true`, `closeOnEscape: boolean = true`, `closeOnCancel: boolean = true`, `closeOnConfirm: boolean = false`, `showFooter: boolean = true`, `cancelLabel: string = "Cancel"`, `cancelIcon: string = ""`, `confirmLabel: string = "Confirm"`, `confirmIcon: string = ""`, `confirmDisabled: boolean = false`, `confirmLoading: boolean = false`, `destructive: boolean = false`, `triggerLabel: string = ""`, `triggerIcon: string = ""`, `scrollable: boolean = true`, `class: string = ""`
+- Props: `open: boolean = false`, `defaultOpen: boolean = false`, `title: string = "Modal"`, `description: string = ""`, `icon: string = ""`, `label: string = "Modal dialog"`, `size: string = "md"`, `placement: string = "center"`, `color: string = "primary"`, `variant: string = "default"`, `showClose: boolean = true`, `closeLabel: string = "Close modal"`, `closeOnBackdrop: boolean = true`, `closeOnEscape: boolean = true`, `closeOnCancel: boolean = true`, `closeOnConfirm: boolean = false`, `showFooter: boolean = true`, `cancelLabel: string = "Cancel"`, `cancelIcon: string = ""`, `confirmLabel: string = "Confirm"`, `confirmIcon: string = ""`, `confirmDisabled: boolean = false`, `confirmLoading: boolean = false`, `destructive: boolean = false`, `triggerLabel: string = ""`, `triggerIcon: string = ""`, `scrollable: boolean = true`, `scrollBehavior: string = "inside"`, `class: string = ""`
 - Slots: `trigger`, `header`, `default`, `footer`
 - Outputs: `open({ sourceEvent: Event })`, `close({ reason: string; sourceEvent: Event })`, `cancel({ sourceEvent: Event })`, `confirm({ sourceEvent: Event })`
 
@@ -987,11 +987,11 @@ Show concise accessible contextual help on hover, focus, click, or controlled op
 
 ## Tables
 
-### Table
+### DataTable
 
-Theme-aware, responsive table component.
+Sortable, filterable, paginated data table with row selection.
 
-- Mount: `data-component="Table"`
-- Props: `size: string = "default"`, `color: string = "primary"`, `caption: string = "Table"`, `columns: unknown[] = []`, `rows: unknown[] = []`, `striped: boolean = true`, `class: string = ""`
+- Mount: `data-component="DataTable"`
+- Props: `color: string = "primary"`, `size: string = "default"`, `columns: unknown[] = []`, `rows: unknown[] = []`, `rowKey: string = "id"`, `remote: boolean = false`, `loadingLabel: string = "Loading"`, `errorLabel: string = "Could not load this data"`, `retryLabel: string = "Try again"`, `caption: string = ""`, `description: string = ""`, `searchable: boolean = true`, `searchPlaceholder: string = "Search"`, `paginated: boolean = true`, `pageSize: number = 10`, `paginationStyle: string = "compact"`, `pageSizes: number[] = [10, 25, 50]`, `selectable: boolean = false`, `actions: unknown[] = []`, `striped: boolean = true`, `bordered: boolean = true`, `gridlines: string = "rows"`, `density: string = "default"`, `emptyLabel: string = "No records to show"`, `noResultsLabel: string = "No records match your search"`, `clearSearchLabel: string = "Clear search"`, `stickyFirstColumn: boolean = false`, `layout: string = "rows"`, `class: string = ""`
 - Slots: `default`
-- Outputs: `sort({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`, `select({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`, `rowClick({ value?: string | number | boolean | null; values?: Array<string | number | boolean | null | object>; sourceEvent?: Event; [key: string]: string | number | boolean | null | object } | string | number | boolean | null)`
+- Outputs: `sort({ key: string; direction: string })`, `search({ query: string })`, `pageChange({ page: number; pageSize: number })`, `select({ selected: Array<string | number>; all: boolean })`, `change({ page: number; pageSize: number; total: number; query: string; sortKey: string; sortDirection: string })`, `rowClick({ row: object; sourceEvent: Event })`, `action({ id: string; selected: Array<string | number>; rows: object[]; sourceEvent: Event })`, `request({ instanceId: number; page: number; pageSize: number; sortKey: string; sortDirection: string; query: string })`