style(ui): the kit panel for every menu, shared danger rows, radio pickers (#1945)

* style(ui): the kit panel for every menu, shared danger rows, radio pickers

Every mat-menu now gets the kit panel from one global rule instead of the
opt-in `.app-menu` class: a bordered 10px panel, 36px rows at 13px with
16px icons, the checked row on the list-selection tokens. The mixin caps
the panel at 360px wide and 480px tall (less in a short window), so long
lists such as seasons and guide scopes scroll inside it; Material 22 sets
no height limit.

Destructive rows in the downloads lists and the dashboard rail card menu
use `app-menu-item--danger` after a mat-divider. The rail menu's dead
`panelClass` and private danger/separator rules are gone.

The season picker's rows are appMenuItemRadio with the check slot, and its
outer tablist role applies only in chip mode. The guide scope rows are
menuitemradio with aria-checked and the same check icon, spelled out
because ui-epg sits below ui-components. Both lose their private panel
styles. The refine menu captions and the downloads source header use the
kit's section label.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* docs(ui): replace the stale no-height-cap menu guidance

The Single-Choice Menus section still said Material sets no max-height on
a menu, so a tall menu is clipped. The kit panel now caps every menu at
480px and scrolls; the bullet keeps the advice to open a menu of actions
whole and move a secondary group into a submenu.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* test(e2e): park the pointer before the keyboard-only refine menu steps

On the Linux and Windows runners the refine menu test found the rating
row inactive after ArrowUp, with its submenu already open. With the kit's
36px rows that row sits under the runners' resting cursor; Chromium hovers
whatever lands under a resting pointer after layout, Material opens a
submenu on hover, and ArrowUp then moved inside the thresholds. Resting a
pointer on the row locally reproduces the same failure. The test now moves
the pointer to the corner before it drives the menu from the keyboard.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

docs/architecture/iptvnator-ui-guidelines.md

@@ -64,10 +64,10 @@ the subsystem's document.
 **Consequences.**
 
 - Material upgrades can change behaviour. Seen in v22: the menu panel has no
-  max-height; a submenu is offset by the parent's first direct
-  `mat-menu-item`, so a trigger that follows `role="group"` rows is wrapped
-  in `<div role="none">`; overlay panes are `position: static` inside the
-  bounding box.
+  max-height (the kit panel adds one); a submenu is offset by the parent's
+  first direct `mat-menu-item`, so a trigger that follows `role="group"` rows
+  is wrapped in `<div role="none">`; overlay panes are `position: static`
+  inside the bounding box.
 - Keep E2E coverage on menus and dialogs.
 
 ## Canonical References
@@ -294,18 +294,20 @@ selection blue on its own tint is 3.3:1) and the selection colour in dark.
 
 ## Single-Choice Menus And Status Chips
 
-A `<mat-menu class="app-menu">` gets the kit panel from one global rule in
-`styles.scss` (`menu-panel` in `libs/ui/styles/_app-controls.scss`): a
-bordered 10px panel with 6px padding, 36px rows at 13px with 16px icons, the
-checked row on the list-selection tokens, a destructive row marked
-`app-menu-item--danger` after a divider, and a shortcut hint in a trailing
-`kbd.app-menu-item__kbd`. The panel renders in the overlay container, outside
-every component view, so a component never copies the mixin into its own
-stylesheet.
+Every `mat-menu` gets the kit panel from one global rule in `styles.scss`
+(`menu-panel` in `libs/ui/styles/_app-controls.scss`): a bordered 10px panel
+with 6px padding, 240–360px wide, 36px rows at 13px with 16px icons, the
+checked row on the list-selection tokens, and at most 480px tall (less in a
+short window), so a long list scrolls inside the panel. A destructive row
+carries `app-menu-item--danger` and sits after a `<mat-divider>`; a shortcut
+hint is a trailing `kbd.app-menu-item__kbd`. The panel renders in the overlay
+container, outside every component view, so a component neither copies the
+mixin nor styles its own panel; a section caption inside a menu uses the
+kit's 11px uppercase label, as the catalog refine menu does.
 
-A `mat-menu` that picks one value, such as a sort order or a rating
-threshold, uses `appMenuItemRadio` and `appMenuItemRadioCheck` from
-`@iptvnator/ui/components`:
+A `mat-menu` that picks one value, such as a sort order, a rating threshold,
+a season or a guide scope, uses `appMenuItemRadio` and
+`appMenuItemRadioCheck` from `@iptvnator/ui/components`:
 
 ```html
 <button mat-menu-item [appMenuItemRadio]="mode() === option.mode">
@@ -323,14 +325,19 @@ threshold, uses `appMenuItemRadio` and `appMenuItemRadioCheck` from
   therefore shifted that row's label. In a button, put a trailing icon after
   the label with `iconPositionEnd`.
 - A semantic icon, if any, comes after the check slot.
+- `@iptvnator/ui/epg` sits below `@iptvnator/ui/components` in the
+  dependency graph, so the guide toolbar's scope menu spells the same markup
+  out: `role="menuitemradio"` on the item, `aria-checked`, and an
+  `app-menu-item-radio-check` icon hidden while unchecked.
 - A menu with several groups, such as the catalog refine menu, wraps each
   group in `role="group"`. The group is named by its section title, and
   `role="separator"` sits between groups.
-- Keep a menu short enough to open whole below its trigger in a 600px-tall
-  window. Material 22 sets no max-height on a menu panel: a taller menu is
-  pushed up over its own trigger, then clipped. Move a secondary group into
-  a submenu whose row shows the active value, as the refine menu does with
-  its rating thresholds.
+- Keep a menu of actions or groups short enough to open whole below its
+  trigger in a 600px-tall window. The kit panel caps every menu at 480px
+  (less in a short window) and scrolls past that, which suits a long list
+  of peers such as seasons or guide scopes, but a scrolled-off action is
+  easy to miss. Move a secondary group into a submenu whose row shows the
+  active value, as the refine menu does with its rating thresholds.
 - Material offsets a submenu by the `offsetTop` of the parent menu's first
   direct `mat-menu-item`. When the earlier rows sit inside a `role="group"`,
   that first direct item is the submenu trigger itself, and the submenu