feat: Refactor admin UI pages to support embedded mode and improve navigation

- Updated PlayerLogs, Players, Reports, Rooms, Settings, SignupCodes, and other pages to accept an optional `embedded` prop for better integration in various contexts.
- Introduced a new Activity page consolidating audit logs and player request logs with tab navigation.
- Added Content page for community board and loading tips with tab navigation.
- Created Moderation page to unify player directory, bans, and reports under a single interface.
- Implemented SettingsHome page to manage server settings and signup codes with tab navigation.
- Enhanced the Join page to include password creation for new accounts.
- Added global friends feature in Settings to allow all accounts to be friends without database entries.
- Introduced RelationshipQueries service to manage effective friend resolution based on global friends toggle.
- Added WireDates for consistent date handling in serialized data.
- Created reusable Tabs component for consistent tab navigation across various pages.

DorkNet.Server/Services/StoreService.cs

@@ -778,8 +778,11 @@ public class StoreService(DorkNetDbContext db, LevelService level, IConfiguratio
         {
             StorefrontType = storefrontType,
             StorefrontName = name,
-            NextUpdate = "9999-12-31T00:00:00Z",
-            NewUntil = "9999-12-31T00:00:00Z",
+            // NOT year 9999: that overflows the watch's local-timezone date
+            // parse in some DST timezones → "malformed RecNet response" and a
+            // broken store for that player only. See WireDates.
+            NextUpdate = WireDates.FarFutureIso,
+            NewUntil = WireDates.FarFutureIso,
             StoreItems = storeItems,
         };
     }