fix(xtream): keep category management available

Fixes #913

docs/architecture/category-management.md

@@ -66,14 +66,12 @@ ALTER TABLE categories ADD COLUMN hidden INTEGER DEFAULT 0
 
 **Integration Points**
 
-- `xtream-main-container.component.ts` - Movies & Series sections
-- `live-stream-layout.component.ts` - Live TV section
-
-Both components:
-
-1. Add a "tune" icon button in the sidebar header
-2. Open the dialog with playlist ID and content type
-3. Call `xtreamStore.reloadCategories()` after dialog closes with changes
+- `libs/workspace/shell/feature/src/lib/workspace-context-panel/workspace-context-panel.component.ts`
+  renders the tune icon button for Xtream Live TV, Movies, and Series sidebars.
+- The workspace context panel lazy-loads `CategoryManagementDialogComponent`
+  from `@iptvnator/portal/xtream/feature`, opens it with playlist ID, content
+  type, and item counts, then calls `xtreamStore.reloadCategories()` after a
+  successful dialog save.
 
 ### Store
 
@@ -87,6 +85,11 @@ Added `reloadCategories()` method to refresh categories from database after visi
 - **Persistence**: Visibility settings survive playlist refresh (see below)
 - **Per-playlist, per-type**: Categories are managed per playlist and per content type (live/movies/series)
 - **No content deletion**: Hiding a category only affects sidebar visibility; the category and its content remain in the database
+- **All-hidden recovery**: Once the selected Xtream type is loaded, the manage
+  categories button remains available even if every visible category has been
+  hidden. The sidebar category list is filtered, but the dialog reads all
+  categories through `getAllXtreamCategories()` so users can select categories
+  again.
 
 ### Visibility Preservation During Refresh