refactor(server): move serverCapabilities into lib

The serverCapabilities cluster (catalog, context, resolve, storeView, types) is
lib-level infra: it imports only @/lib/server and is consumed by both lib and
feature code, so a feature home would invert the two lib consumers. Move it to
src/lib/serverCapabilities and repoint consumers.

Pure move + import updates, no behavior change. Baseline gains one lib->store
entry (storeView reads authStore, only now caught under lib/).

src/features/playback/store/playbackReportSession.test.ts

@@ -4,7 +4,7 @@ vi.mock('@/lib/api/subsonicScrobble', () => ({
   reportPlayback: vi.fn(() => Promise.resolve()),
   reportNowPlaying: vi.fn(() => Promise.resolve()),
 }));
-vi.mock('@/serverCapabilities/storeView', () => ({
+vi.mock('@/lib/serverCapabilities/storeView', () => ({
   isFeatureActiveForServer: vi.fn(),
 }));
 vi.mock('@/store/authStore', () => ({
@@ -25,7 +25,7 @@ vi.mock('@/store/orbitRuntime', async (importOriginal) => ({
 }));
 
 import { reportNowPlaying, reportPlayback } from '@/lib/api/subsonicScrobble';
-import { isFeatureActiveForServer } from '@/serverCapabilities/storeView';
+import { isFeatureActiveForServer } from '@/lib/serverCapabilities/storeView';
 import { useAuthStore } from '@/store/authStore';
 import {
   _resetPlaybackReportSessionForTest,

src/features/playback/store/playbackReportSession.ts

@@ -1,7 +1,7 @@
 import { reportNowPlaying, reportPlayback } from '@/lib/api/subsonicScrobble';
 import type { PlaybackReportState } from '@/lib/api/subsonicTypes';
-import { FEATURE_PLAYBACK_REPORT } from '@/serverCapabilities/catalog';
-import { isFeatureActiveForServer } from '@/serverCapabilities/storeView';
+import { FEATURE_PLAYBACK_REPORT } from '@/lib/serverCapabilities/catalog';
+import { isFeatureActiveForServer } from '@/lib/serverCapabilities/storeView';
 import { isPlaybackRateApplied } from '@/features/playback/utils/audio/playbackRateHelpers';
 import { isOrbitPlaybackSyncActive } from '@/store/orbitRuntime';
 import { useAuthStore } from '@/store/authStore';

src/features/settings/components/ServerCapabilityHeaderBadge.tsx

@@ -1,6 +1,6 @@
 import { useTranslation } from 'react-i18next';
-import { getCapabilityDefinition } from '@/serverCapabilities/catalog';
-import { isFeatureActiveForServer, resolveFeatureForServer } from '@/serverCapabilities/storeView';
+import { getCapabilityDefinition } from '@/lib/serverCapabilities/catalog';
+import { isFeatureActiveForServer, resolveFeatureForServer } from '@/lib/serverCapabilities/storeView';
 
 /** Inline badge for auto-managed server capabilities (Settings → Servers header row). */
 export function ServerCapabilityHeaderBadge({

src/features/settings/components/ServersTab.tsx

@@ -5,7 +5,7 @@ import { open as openUrl } from '@tauri-apps/plugin-shell';
 import { AlertTriangle, CheckCircle2, Info, Lock, LogOut, Pencil, Plus, Power, Server, Sparkles, Wifi, WifiOff } from 'lucide-react';
 import { useAuthStore } from '@/store/authStore';
 import { formatServerSoftware, isNavidromeAudiomuseSoftwareEligible, type InstantMixProbeResult, type SubsonicServerIdentity } from '@/lib/server/subsonicServerIdentity';
-import { buildCapabilityContext } from '@/serverCapabilities/context';
+import { buildCapabilityContext } from '@/lib/serverCapabilities/context';
 import { useLibraryIndexStore } from '@/store/libraryIndexStore';
 import { libraryDeleteServerData, librarySyncClearSession } from '@/lib/api/library';
 import { bootstrapIndexedServer } from '@/lib/library/librarySession';
@@ -29,9 +29,9 @@ import {
 } from '@/lib/server/serverUrlRemigration';
 import { useConfirmModalStore } from '@/store/confirmModalStore';
 import { showToast } from '@/lib/dom/toast';
-import { FEATURE_AUDIOMUSE_SIMILAR_TRACKS } from '@/serverCapabilities/catalog';
-import { isFeatureActiveForServer, resolveFeatureForServer } from '@/serverCapabilities/storeView';
-import type { ResolvedCapability } from '@/serverCapabilities/types';
+import { FEATURE_AUDIOMUSE_SIMILAR_TRACKS } from '@/lib/serverCapabilities/catalog';
+import { isFeatureActiveForServer, resolveFeatureForServer } from '@/lib/serverCapabilities/storeView';
+import type { ResolvedCapability } from '@/lib/serverCapabilities/types';
 import { serverIdentityLabel, serverListDisplayLabel, serverSettingsEntryTitle } from '@/lib/server/serverDisplayName';
 import { serverIndexKeyForProfile } from '@/lib/server/serverIndexKey';
 import { switchActiveServer } from '@/utils/server/switchActiveServer';

src/features/sidebar/components/perfProbe/SidebarPerfProbeServerSection.tsx

@@ -1,13 +1,13 @@
 import { useAuthStore } from '@/store/authStore';
 import type { NavidromeAdminRole } from '@/lib/hooks/useNavidromeAdminRole';
 import { isNavidromeServer, formatServerSoftware } from '@/lib/server/subsonicServerIdentity';
-import { FEATURE_AUDIOMUSE_SIMILAR_TRACKS, OP_SIMILAR_TRACKS } from '@/serverCapabilities/catalog';
+import { FEATURE_AUDIOMUSE_SIMILAR_TRACKS, OP_SIMILAR_TRACKS } from '@/lib/serverCapabilities/catalog';
 import {
   isFeatureActiveForServer,
   resolveCallRoutesForServer,
   resolveFeatureForServer,
-} from '@/serverCapabilities/storeView';
-import type { CapabilityStatus, FeatureTrust, ResolvedCapability } from '@/serverCapabilities/types';
+} from '@/lib/serverCapabilities/storeView';
+import type { CapabilityStatus, FeatureTrust, ResolvedCapability } from '@/lib/serverCapabilities/types';
 import { PerfProbeMetricSection } from '@/features/sidebar/components/perfProbe/PerfProbeMetricCard';
 import PerfProbeDetailList, { type PerfProbeDetailRow } from '@/features/sidebar/components/perfProbe/PerfProbeDetailList';
 import PerfProbeStatusBadge, { type PerfProbeBadgeTone } from '@/features/sidebar/components/perfProbe/PerfProbeStatusBadge';