fix(workspace): report a local phase while reading the cached Xtream catalog (#1345)

* fix(workspace): report a local phase while reading the cached Xtream catalog

Since #1311 the sync overlay is shown for the whole import session, but the
DB-first read path never emitted an import phase, so switching to an
already-imported Xtream playlist showed a bare "Syncing playlist" card with
no badge or description. The Electron data source now reports a
'loading-cached' phase (local-library badge, its own label and detail text)
before reading categories/content from SQLite, and the PWA data source
reports the remote loading phases on API fetches it previously swallowed.

Adds the two new i18n keys to en.json and all 18 locales.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(portals): keep the loading-cached phase from marking a real import

The store's onPhaseChange callbacks set isImporting unconditionally, and the
initialization error path gates import-cache cleanup on that flag — so a
cancelled or failed warm SQLite read would have wiped the healthy cached
catalog and forced a full provider redownload. The shared publishImportPhase
helper now publishes 'loading-cached' as a presentation-only phase; any
remote/save phase still marks the import as running. Adds regression specs
(verified to fail against the previous behavior) in a dedicated spec file to
stay under the test max-lines limit.

Addresses Codex P1 review feedback on #1345.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(portals): scope cancelled-import cleanup to types with remote work

A session-wide isImporting flag meant that once any content type contacted
the provider, cancelling during a later cache-only read cleared the healthy
cached catalogs of every not-yet-completed type. Cleanup now consults a
per-session set of types that actually performed remote or save work
(populated from typed phase callbacks and save-content events), so
cache-only types keep their catalogs on cancellation while genuinely
partial types are still cleared. Mixed-scenario regression spec added
(mutation-verified against the unguarded behavior).

Addresses the second Codex P1 on #1345.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

libs/workspace/shell/feature/src/lib/workspace-context-panel/workspace-context-panel.component.ts

@@ -461,6 +461,8 @@ export class WorkspaceContextPanelComponent {
 
     private getXtreamImportPhaseLabelKey(phase: string | null): string {
         switch (phase) {
+            case 'loading-cached':
+                return 'WORKSPACE.SHELL.XTREAM_IMPORT_LOADING_CACHED';
             case 'preparing-content':
                 return 'WORKSPACE.SHELL.XTREAM_IMPORT_PREPARING';
             case 'loading-categories':

libs/workspace/shell/feature/src/lib/workspace-shell/services/helpers/workspace-shell-import-labels.ts

@@ -35,6 +35,7 @@ export function buildXtreamImportPhaseTone(
         case 'loading-movies':
         case 'loading-series':
             return 'remote';
+        case 'loading-cached':
         case 'preparing-content':
         case 'saving-categories':
         case 'saving-content':
@@ -82,6 +83,8 @@ export function buildXtreamImportPhaseLabel(
     translate: TranslateFn
 ): string {
     switch (phase) {
+        case 'loading-cached':
+            return translate('WORKSPACE.SHELL.XTREAM_IMPORT_LOADING_CACHED');
         case 'preparing-content':
             return translate('WORKSPACE.SHELL.XTREAM_IMPORT_PREPARING');
         case 'loading-categories':
@@ -104,9 +107,16 @@ export function buildXtreamImportPhaseLabel(
 }
 
 export function buildXtreamImportDetailLabel(
+    phase: string | null | undefined,
     tone: XtreamImportPhaseTone,
     translate: TranslateFn
 ): string {
+    // Reading the already-imported catalog from SQLite is a local phase, but
+    // the generic local detail ("prepares faster switches next time") would
+    // misdescribe it — the cache is what is being read, not built.
+    if (phase === 'loading-cached') {
+        return translate('WORKSPACE.SHELL.XTREAM_IMPORT_DETAIL_CACHED');
+    }
     if (tone === 'remote') {
         return translate('WORKSPACE.SHELL.XTREAM_IMPORT_DETAIL_REMOTE');
     }

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

@@ -184,6 +184,7 @@ export class WorkspaceShellXtreamImportService {
         }
 
         return buildXtreamImportDetailLabel(
+            this.xtreamStore.currentImportPhase(),
             this.xtreamImportPhaseTone(),
             this.translateText
         );

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

@@ -458,6 +458,25 @@ describe('WorkspaceShellFacade', () => {
         );
     });
 
+    it('describes a local-library read while cached content is loading', () => {
+        const xtreamStore = TestBed.inject(
+            XtreamStore
+        ) as unknown as MockXtreamStore;
+        const xtreamImport = TestBed.inject(WorkspaceShellXtreamImportService);
+
+        xtreamStore.currentImportPhase.set('loading-cached');
+
+        expect(xtreamImport.xtreamImportPhaseLabel()).toBe(
+            'WORKSPACE.SHELL.XTREAM_IMPORT_LOADING_CACHED'
+        );
+        expect(xtreamImport.xtreamImportSourceLabel()).toBe(
+            'WORKSPACE.SHELL.XTREAM_IMPORT_LOCAL_BADGE'
+        );
+        expect(xtreamImport.xtreamImportDetailLabel()).toBe(
+            'WORKSPACE.SHELL.XTREAM_IMPORT_DETAIL_CACHED'
+        );
+    });
+
     it('shows the Xtream overlay during refresh preparation for the active playlist', () => {
         refreshPreparationSignal.set({
             playlistId: 'pl-1',