refactor(runtime): enable pwa xtream section navigation

docs/architecture/pwa-self-hosted.md

@@ -74,7 +74,9 @@ from one shared boundary. `supportsSqlite` requires the complete playlist
 storage preload API surface used by `PlaylistsService`, `supportsDownloads`
 requires the complete downloads preload API surface used by `DownloadsService`,
 `supportsPlaylistRefresh` requires the native playlist refresh/cancel/progress
-bridge, and
+bridge, `supportsXtreamSectionNavigation` is available in PWA and in Electron
+when either the SQLite Xtream data source or the Xtream API transport is
+available, and
 `supportsManagedExternalPlayers` requires the MPV and VLC preload launch methods
 (`openInMpv` and `openInVlc`); a partial Electron bridge must not expose
 desktop-only actions in the PWA/shared UI.

libs/services/src/lib/runtime-capabilities.service.spec.ts

@@ -30,7 +30,7 @@ describe('RuntimeCapabilitiesService', () => {
         expect(service.supportsEmbeddedMpv).toBe(false);
         expect(service.supportsDesktopFileSave).toBe(false);
         expect(service.supportsRemoteControl).toBe(false);
-        expect(service.supportsXtreamSectionNavigation).toBe(false);
+        expect(service.supportsXtreamSectionNavigation).toBe(true);
     });
 
     it('reports Electron capabilities from the available preload bridge methods', () => {
@@ -103,6 +103,7 @@ describe('RuntimeCapabilitiesService', () => {
             updateRemoteControlStatus: jest.fn(),
             onChannelChange: jest.fn(),
             onRemoteControlCommand: jest.fn(),
+            xtreamRequest: jest.fn(),
         };
 
         const service = new RuntimeCapabilitiesService();
@@ -145,7 +146,7 @@ describe('RuntimeCapabilitiesService', () => {
         expect(service.supportsEmbeddedMpv).toBe(false);
         expect(service.supportsDesktopFileSave).toBe(false);
         expect(service.supportsRemoteControl).toBe(false);
-        expect(service.supportsXtreamSectionNavigation).toBe(true);
+        expect(service.supportsXtreamSectionNavigation).toBe(false);
     });
 
     it('reads the bridge dynamically so tests and late preload setup stay accurate', () => {
@@ -251,6 +252,18 @@ describe('RuntimeCapabilitiesService', () => {
 
         expect(service.supportsSqlite).toBe(true);
     });
+
+    it('supports Xtream section navigation in Electron when Xtream API transport is available', () => {
+        testWindow.electron = {
+            xtreamRequest: jest.fn(),
+        };
+
+        const service = new RuntimeCapabilitiesService();
+
+        expect(service.isElectron).toBe(true);
+        expect(service.supportsXtreamSqliteDataSource).toBe(false);
+        expect(service.supportsXtreamSectionNavigation).toBe(true);
+    });
 });
 
 function createPlaylistStorageBridge(): Record<string, jest.Mock> {

libs/services/src/lib/runtime-capabilities.service.ts

@@ -156,7 +156,11 @@ export class RuntimeCapabilitiesService {
     }
 
     get supportsXtreamSectionNavigation(): boolean {
-        return this.isElectron;
+        return (
+            this.isPwa ||
+            this.supportsXtreamSqliteDataSource ||
+            this.hasElectronMethod('xtreamRequest')
+        );
     }
 
     private hasElectronMethod(methodName: string): boolean {