fix(store,audit,workspace): usertest low-findings tail (0.72.1)

- Store hero: 'TODAY' badge only for an operator-accepted story; the
  rotating compiled-in fallback deck now says 'FEATURED' (no false
  freshness claim). Policy as a top-level function with unit tests.
- Audit filter chips: standard label typography instead of mono —
  mono stays reserved for paths and identifiers.
- DE chain wording: 'Hash-Kette geprüft' as the one confirmation term
  (audit header now matches the doctor pill); 'intakt' stays the
  state headline. EN was already consistent.
- Workspace switcher: contrast bump for the sealed-area 'stopped'
  label.

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

lib/l10n/app_de.arb

@@ -374,6 +374,7 @@
   "storesManagerNotAvailableHint": "Der Anbieter hat diesen Store-Index noch nicht veröffentlicht. Sobald er das tut, ist er installierbar.",
   "storesSuggestedReclaimDesc": "Recl∆Im — Module für Rechts- und Pflichten-Reform-Mapping",
   "storeTodayBadge": "HEUTE",
+  "storeFeaturedBadge": "EMPFOHLEN",
   "storeTodayDeck": "Von der Ch∆In-Redaktion",
   "storeTodayDismissTooltip": "Für diese Sitzung ausblenden",
   "storePillInstalled": "installiert",
@@ -629,7 +630,7 @@
       }
     }
   },
-  "auditHashChainVerified": "Hash-Kette verifiziert",
+  "auditHashChainVerified": "Hash-Kette geprüft",
   "auditDetailHeader": "DETAIL",
   "auditAskingFull": "Frage an die konfigurierte System-AI läuft…",
   "auditFixLabel": "FIX",