refactor(dashboard): live rail now favorites-first; drop mixed Favorites rail

Two related dashboard fixes driven by the v0.22 mockup intent and the
UX-audit feedback that the rail labels lied about their data:

1. Live rail is favorites-first
   - Source: globalFavoriteLiveItems() — the channels the user actually
     starred. Falls back to globalRecentLiveItems() when no favorites
     exist so fresh-install users still see something useful.
   - Title flips with the source: "Live now on your favorites" when
     pulling from favorites, "Continue with live TV" when pulling from
     recent-watch history. The label is always honest about the data.
   - "See all" link routes to the right collection page for the source
     (/workspace/global-favorites vs /workspace/global-recent).

2. Mixed Global Favorites rail removed from the dashboard
   - The rail had movies, series, live channels, and radio all sharing
     one row — different card formats fighting for visual attention.
     UX wiki principle: similar elements should look alike within a
     scanning unit.
   - Live favorites are promoted into the live rail above (with current
     EPG). The full mixed catalogue is still one click away at
     /workspace/global-favorites where the collection page can give it
     proper per-type filters.
   - Net dashboard density goes from 5 rails to 4 — closer to the
     streaming-app sweet spot.

i18n: new WORKSPACE.DASHBOARD.LIVE_CONTINUE key, translated across all
17 locales by per-locale agents (placeholder integrity verified).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

libs/workspace/dashboard/feature/src/lib/rails/workspace-dashboard-rails.component.html

@@ -131,13 +131,19 @@
             />
         }
 
-        <!-- Live now on your favorites (channels you recently watched) -->
+        <!-- Live rail — favorited live channels first, falls back to
+             recently-watched live. Title flips based on source so the label
+             is always honest about what's rendered. -->
         @if (liveOnFavoritesCardsEnriched().length > 0) {
             <lib-dashboard-rail
-                [label]="'WORKSPACE.DASHBOARD.LIVE_RECENT' | translate"
+                [label]="liveRailTitleKey() | translate"
                 [items]="liveOnFavoritesCardsEnriched()"
-                [totalCount]="data.globalRecentLiveItems().length"
-                [seeAllLink]="['/workspace/global-recent']"
+                [totalCount]="liveRailTotalCount()"
+                [seeAllLink]="
+                    liveRailSource() === 'favorites'
+                        ? ['/workspace/global-favorites']
+                        : ['/workspace/global-recent']
+                "
                 layout="channel"
                 [testId]="'dashboard-live-recent-rail'"
             />
@@ -162,29 +168,11 @@
             </section>
         }
 
-        <!-- Favorites rail -->
-        @if (favoriteCards().length > 0) {
-            <lib-dashboard-rail
-                [label]="'WORKSPACE.DASHBOARD.GLOBAL_FAVORITES' | translate"
-                [items]="favoriteCards()"
-                [totalCount]="data.globalFavoriteItems().length"
-                [seeAllLink]="['/workspace/global-favorites']"
-                [testId]="'dashboard-global-favorites-rail'"
-            />
-        } @else if (data.globalFavoritesLoading()) {
-            <section
-                class="rails-page__skeleton-rail"
-                aria-hidden="true"
-                aria-busy="true"
-            >
-                <div class="rails-page__skeleton-header"></div>
-                <div class="rails-page__skeleton-track">
-                    @for (slot of skeletonSlots; track slot) {
-                        <div class="rails-page__skeleton-card"></div>
-                    }
-                </div>
-            </section>
-        }
+        <!-- Mixed Global Favorites rail intentionally NOT rendered on the
+             dashboard. Live favorites are promoted into the live rail above
+             (with current EPG), and the full mixed catalogue lives on the
+             dedicated /workspace/global-favorites page where the collection
+             UI can give it the per-type filters it needs. -->
 
         <!-- Sources rail -->
         @if (sourceCards().length > 0) {

libs/workspace/dashboard/feature/src/lib/rails/workspace-dashboard-rails.component.ts

@@ -403,11 +403,43 @@ export class WorkspaceDashboardRailsComponent {
             .map((item) => this.toRecentCard(item))
     );
 
-    readonly liveOnFavoritesCards = computed<DashboardRailCard[]>(() =>
-        this.data
+    // Live rail source — favorited live channels take precedence so the EPG
+    // enrichment lands on the channels the user actually cares about. When
+    // no favorites exist (fresh install, or a user who hasn't starred any
+    // channel yet), fall back to recently-watched live so the rail still
+    // has something to show. `liveRailSource` drives the title swap.
+    readonly liveRailSource = computed<'favorites' | 'recent'>(() =>
+        this.data.globalFavoriteLiveItems().length > 0
+            ? 'favorites'
+            : 'recent'
+    );
+
+    readonly liveOnFavoritesCards = computed<DashboardRailCard[]>(() => {
+        if (this.liveRailSource() === 'favorites') {
+            return this.data
+                .globalFavoriteLiveItems()
+                .slice(0, RAIL_ITEM_LIMIT)
+                .map((item) => this.toFavoriteCard(item));
+        }
+        return this.data
             .globalRecentLiveItems()
             .slice(0, RAIL_ITEM_LIMIT)
-            .map((item) => this.toRecentCard(item))
+            .map((item) => this.toRecentCard(item));
+    });
+
+    // Title key flips with the source — "Live now on your favorites" when
+    // we're rendering favorites, "Continue with live TV" when we're falling
+    // back to recently-watched. Always honest about what the user is seeing.
+    readonly liveRailTitleKey = computed(() =>
+        this.liveRailSource() === 'favorites'
+            ? 'WORKSPACE.DASHBOARD.LIVE_RECENT'
+            : 'WORKSPACE.DASHBOARD.LIVE_CONTINUE'
+    );
+
+    readonly liveRailTotalCount = computed(() =>
+        this.liveRailSource() === 'favorites'
+            ? this.data.globalFavoriteLiveItems().length
+            : this.data.globalRecentLiveItems().length
     );
 
     // Best-effort EPG lookup keyed by the channel's display name. This works