feat(dashboard): subscription-expiry warning badge on source cards (#1342)

* feat(dashboard): warn on source cards when a portal subscription expires soon

Dashboard source cards now carry a passive expiry chip: amber "Expires in
N d" within 7 days of the subscription lapsing, error-toned "Expired" once
it has. Account details stay behind the card's ⋮ → Account info.

Xtream expirations ride on the playlist switcher's cached PortalStatusService
check — checkPortalStatusDetails() now surfaces the parsed exp_date from the
same round-trip, so the dashboard adds no extra portal calls. Stalker
expirations come from the stalkerAccountInfo snapshot persisted at import;
it lives in the playlist payload (meta rows carry payload: null), so each
Stalker source costs one full-playlist read memoized on the playlist's
update timestamp.

New i18n keys added to all 19 locales via the i18n-fill merger.

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

* fix(dashboard): address review feedback on expiry badges

- Recompute expiry badges on a minute tick so a dashboard left open
  crosses day-countdown and expiration boundaries (Greptile P1 / Codex P2)
- Gate the expiry refresh on the recent-sources rail setting so hidden
  rails cost no portal checks or playlist reads (Codex P2)
- Move chip colors to theme-aware tokens in m3-theme.scss; both themes
  now hold >= 4.5:1 small-text contrast (light warn 5.3:1, light expired
  5.4:1, dark warn 7.4:1, dark expired 6.0:1) (Codex P2)

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

* fix(dashboard): make expiry-badge labels depend on the language signal

sourceCards previously relied on getPlaylistProvider's indirect language
read; the translate.instant() labels now read languageTick explicitly
(mirroring trendingCards). Also shift the minute tick by one so the
interval's first 0 differs from initialValue — the signal equality check
was swallowing the first heartbeat, delaying it to two minutes.

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

---------

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

libs/shared/interfaces/src/lib/xtream-portal.utils.spec.ts

@@ -1,6 +1,7 @@
 import {
     extractXtreamCredentialsFromUrl,
     normalizeXtreamServerUrl,
+    resolveXtreamPortalExpiration,
     resolveXtreamPortalStatus,
 } from './xtream-portal.utils';
 
@@ -104,4 +105,39 @@ describe('xtream portal utilities', () => {
             ).toBe('expired');
         });
     });
+
+    describe('resolveXtreamPortalExpiration', () => {
+        it('parses numeric-string exp_date into unix seconds', () => {
+            expect(
+                resolveXtreamPortalExpiration({
+                    user_info: { exp_date: '1790000000' },
+                })
+            ).toBe(1_790_000_000);
+        });
+
+        it('treats unlimited and absent expirations as null', () => {
+            expect(
+                resolveXtreamPortalExpiration({
+                    user_info: { exp_date: '0' },
+                })
+            ).toBeNull();
+            expect(
+                resolveXtreamPortalExpiration({
+                    user_info: { exp_date: '' },
+                })
+            ).toBeNull();
+            expect(
+                resolveXtreamPortalExpiration({ user_info: {} })
+            ).toBeNull();
+            expect(resolveXtreamPortalExpiration(null)).toBeNull();
+        });
+
+        it('rejects non-numeric exp_date values', () => {
+            expect(
+                resolveXtreamPortalExpiration({
+                    user_info: { exp_date: 'never' },
+                })
+            ).toBeNull();
+        });
+    });
 });

libs/shared/interfaces/src/lib/xtream-portal.utils.ts

@@ -102,6 +102,17 @@ export function resolveXtreamPortalStatus(
     return 'active';
 }
 
+/**
+ * Reads the account expiration from an Xtream `get_account_info`-style
+ * response as unix seconds. Returns null when the portal doesn't report one
+ * (unlimited accounts answer with empty/zero/absent `exp_date`).
+ */
+export function resolveXtreamPortalExpiration(
+    response: XtreamPortalStatusResponseLike | null | undefined
+): number | null {
+    return parseXtreamExpiration(response?.user_info?.exp_date);
+}
+
 function normalizeAuthValue(
     value: boolean | number | string | null | undefined
 ): boolean | null {