fix(i18n): translate hard-coded labels, snackbars and missing keys (#1867)

* fix(i18n): translate hard-coded labels, snackbars and missing keys

Catalog screens, snackbars and external player messages showed English
in every locale, and seven keys used in code were missing from en.json,
so ngx-translate rendered them raw.

- Catalog: "All items", item and channel counts, channel sort menus and
  tooltips, unnamed-category and empty-category labels, LIVE/PAUSED
  badges and the Xtream global search summary are translated. The Xtream
  and Stalker stores no longer bake an English name into the every-item
  sentinel; the facades return a null title and the view translates it.
- Snackbars: Xtream/Stalker request failures, the 413 upload error,
  backup export/import results and the category visibility failure use
  keys; every "Close" action uses CLOSE.
- External player: the main process sends an error code instead of an
  English sentence (player-error event, session errorCode, and a tag in
  rejected launch errors); the renderer, dock and VOD primary button
  translate it. The external player info dialog is translated.
- Adds the seven missing keys and 43 new ones, translated in all 18
  locales; seven legitimately identical values are baselined.
- tools/i18n/check-usage.mjs fails on keys used in code but missing from
  en.json; it runs in i18n:check (and so in CI through i18n:validate).

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

* fix(i18n): translate catalog counts in the template and skip inline template comments

- The category subtitle hands a key to the translate pipe instead of
  caching translate.instant(), so a cold start re-renders it once the
  language file loads.
- The Xtream live root count uses the singular/plural item keys, so one
  result no longer reads "1 channels".
- check-usage.mjs strips HTML comments inside inline templates of
  TypeScript files, so a commented-out key no longer fails the check.

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

* fix(i18n): check keys in parenthesised translate pipe operands

`(expanded() ? 'SHOW_LESS' : 'SHOW_MORE') | translate` yields keys that
neither precede the pipe directly nor contain a dot, so the usage check
missed them. It now reads the ternary and fallback branches of a
parenthesised operand; a literal compared in the condition is not read
as a key.

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

* test(e2e): expect the translated external player failure in the dock

A launch failure without an error code now shows the translated generic
status in the playback dock, with the raw main-process detail as its
tooltip. The ClearKey DASH flow asserted the raw English text.

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

* fix(playback): keep the IPC error tag out of the stored session detail

A tagged launch failure reached ExternalPlayerSession.error unchanged, so
the dock tooltip showed "[iptvnator:external-player:start-failed]". The
registry now strips the tag when it stores the detail; the rejected IPC
error keeps it for the renderer to read the code.

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

* test(web): expect translated portal request failure toasts

#1861's new resolved-failure specs asserted the English toast text; the
toasts now go through PORTALS.REQUEST_ERRORS keys, so the specs check
the key and its message/status params.

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

* fix(i18n): read only returned branches of a grouped translate operand

A literal at the start of a condition, as in
`('ERROR' === status() ? 'CLOSE' : 'CLOSE') | translate`, was taken for
a translation key, so a valid template could fail the usage check. A
grouped literal now counts only when it ends its operand (end of group,
`:`, `||` or `??`).

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

---------

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

libs/workspace/shell/feature/src/lib/workspace-context-panel/components/workspace-context-category-view.component.html

@@ -29,7 +29,7 @@
                     {{
                         item.category_name ||
                             $any(item).name ||
-                            'No category name'
+                            ('PORTALS.UNNAMED_CATEGORY' | translate)
                     }}
                 </span>
                 @if (showCounts()) {
@@ -63,7 +63,7 @@
 } @else {
     <div class="category-empty-state">
         <app-workspace-context-error-view
-            [title]="'No categories available'"
+            [title]="'PORTALS.NO_CATEGORIES' | translate"
             [showIllustration]="false"
             [showActionButtons]="false"
             [viewType]="'EMPTY_CATEGORY'"

libs/workspace/shell/feature/src/lib/workspace-context-panel/components/workspace-context-error-view.component.html

@@ -5,13 +5,10 @@
 >
     @if (showIllustration()) {
         @if (viewType() === 'ERROR') {
-            <img
-                alt="Something went wrong"
-                src="./assets/images/broken-tv.svg"
-            />
+            <img alt="" src="./assets/images/broken-tv.svg" />
         } @else if (viewType() === 'EMPTY_CATEGORY') {
             <img
-                alt="empty category"
+                alt=""
                 class="error-view__illustration"
                 src="./assets/images/empty-category.svg"
             />

libs/workspace/shell/feature/src/lib/workspace-shell/services/workspace-shell-search-sync.service.spec.ts

@@ -112,6 +112,7 @@ describe('WorkspaceShellSearchSyncService', () => {
                         setSearchTerm: jest.fn(),
                         setCategorySearchTerm: jest.fn(),
                         getSelectedCategory: signal(null),
+                        selectedCategoryId: signal(null),
                     },
                 },
                 {

libs/workspace/shell/feature/src/lib/workspace-shell/services/workspace-shell-search.service.ts

@@ -156,7 +156,10 @@ export class WorkspaceShellSearchService {
                 context,
                 section,
                 translate: (key, params) => this.translateText(key, params),
-                xtreamCategory: this.xtreamStore.getSelectedCategory(),
+                // No selected category means the grid lists every item.
+                xtreamCategory: this.xtreamStore.selectedCategoryId()
+                    ? this.xtreamStore.getSelectedCategory()
+                    : { name: this.translateText('PORTALS.ALL_ITEMS') },
                 stalkerCategoryName:
                     this.stalkerStore.getSelectedCategoryName(),
             }),

libs/workspace/shell/feature/src/lib/workspace-shell/services/workspace-shell-search.settings.spec.ts

@@ -56,7 +56,10 @@ describe('WorkspaceShellSearchService on settings routes', () => {
                 { provide: Router, useValue: { navigate: jest.fn() } },
                 {
                     provide: XtreamStore,
-                    useValue: { getSelectedCategory: () => null },
+                    useValue: {
+                        getSelectedCategory: () => null,
+                        selectedCategoryId: () => null,
+                    },
                 },
                 {
                     provide: StalkerStore,

libs/workspace/shell/feature/src/lib/workspace-shell/services/workspace-shell.facade.spec.ts

@@ -58,6 +58,7 @@ class MockXtreamStore {
         category_name?: string;
         name?: string;
     } | null>(null);
+    readonly selectedCategoryId = signal<number | null>(null);
     readonly vodStreams = signal<unknown[]>([{ id: 1 }]);
     readonly liveStreams = signal<unknown[]>([{ id: 2 }]);
     readonly serialStreams = signal<unknown[]>([{ id: 3 }]);
@@ -669,6 +670,27 @@ describe('WorkspaceShellFacade', () => {
         );
     });
 
+    it('scopes Xtream search to the translated every-item label without a category', () => {
+        const xtreamStore = TestBed.inject(
+            XtreamStore
+        ) as unknown as MockXtreamStore;
+
+        facade.currentUrl.set('/workspace/xtreams/pl-1/vod?q=neo');
+        searchSync.syncSearchFromRoute();
+        TestBed.flushEffects();
+
+        expect(facade.searchScopeLabel()).toBe(
+            'WORKSPACE.SHELL.RAIL_MOVIES / PORTALS.ALL_ITEMS'
+        );
+
+        xtreamStore.selectedCategoryId.set(7);
+        xtreamStore.getSelectedCategory.set({ name: 'Drama' });
+
+        expect(facade.searchScopeLabel()).toBe(
+            'WORKSPACE.SHELL.RAIL_MOVIES / Drama'
+        );
+    });
+
     it('applies q to Xtream category search on vod routes', () => {
         const xtreamStore = TestBed.inject(
             XtreamStore