refactor(hooks): move cross-cutting hooks into lib/hooks

The five residual src/hooks/ hooks (useConnectionStatus, useCardGridMetrics,
useTracklistColumns, useNavidromeAdminRole, useAnalysisPerfListener) are all
domain-agnostic — none imports @/features — so they join the other shared hooks
in src/lib/hooks/ (with their two colocated tests). Consumers repointed;
relative-up imports in the moved files become the @/ alias. src/hooks/ is removed.

Pure move + import updates, no behavior change. The layering baseline gains five
lib->store entries (the three hooks that read authStore/devOfflineBrowseStore are
only now caught under lib/) — same documented debt class as the api move.

src/features/offline/utils/offlineBrowseContext.ts

@@ -1,4 +1,4 @@
-import type { ConnectionStatus } from '@/hooks/useConnectionStatus';
+import type { ConnectionStatus } from '@/lib/hooks/useConnectionStatus';
 import type { OfflineAlbumMeta } from '@/features/offline/store/offlineStore';
 import { favoritesOfflineBrowseEnabled } from '@/features/offline/utils/favoritesOfflineBrowse';
 import { hasOfflineBrowseCapability } from '@/features/offline/utils/offlineBrowseRouting';

src/features/offline/utils/offlineBrowseMode.ts

@@ -2,7 +2,7 @@ import {
   isDevOfflineBrowseForced,
   useDevOfflineBrowseStore,
 } from '@/store/devOfflineBrowseStore';
-import { useConnectionStatus } from '@/hooks/useConnectionStatus';
+import { useConnectionStatus } from '@/lib/hooks/useConnectionStatus';
 import { isActiveServerReachable } from '@/lib/network/activeServerReachability';
 
 /** True when browse/detail pages should use local-bytes-only data sources. */