feat(library): add Mornye browsing and contextual compact navigation

Add category browsing, a two-column Recently Added grid, and a dedicated download queue. Keep compact navigation icons and their animations aligned with the active tab.

Keep profile avatars circular and report lyric enrichment outcomes accurately, preserving existing lyrics and supporting instrumental markers.

lib/utils/re_enrich_result.dart

@@ -0,0 +1,51 @@
+import 'package:spotiflac_android/l10n/l10n.dart';
+
+String? reEnrichLyricsMessage(AppLocalizations l10n, String? status) =>
+    switch (status) {
+      'updated' => l10n.trackReEnrichLyricsUpdated,
+      'instrumental' => l10n.trackInstrumental,
+      'not_found' => l10n.trackLyricsNotAvailable,
+      'preserved' => l10n.trackReEnrichLyricsPreserved,
+      'disabled' => l10n.trackReEnrichLyricsDisabled,
+      _ => null,
+    };
+
+String reEnrichCompletionMessage(
+  AppLocalizations l10n,
+  Map<String, dynamic> result,
+) {
+  final lyrics = reEnrichLyricsMessage(
+    l10n,
+    result['lyrics_status'] as String?,
+  );
+  return lyrics == null
+      ? l10n.trackReEnrichSuccess
+      : '${l10n.trackReEnrichMetadataSaved}\n$lyrics';
+}
+
+/// Count lyric outcomes only after the metadata and sidecar writes finish.
+/// Metadata saved is independent of whether new lyrics could be found.
+class ReEnrichLyricsSummary {
+  final _counts = <String, int>{};
+
+  void add(Map<String, dynamic> result) {
+    final status = result['lyrics_status'] as String?;
+    if (status == null || status == 'not_requested') return;
+    _counts.update(status, (count) => count + 1, ifAbsent: () => 1);
+  }
+
+  String message(AppLocalizations l10n, int saved, int total) {
+    final failed = total - saved;
+    final lines = [
+      failed > 0
+          ? l10n.trackReEnrichSuccessWithFailures(saved, total, failed)
+          : _counts.isEmpty
+          ? '${l10n.trackReEnrichSuccess} ($saved/$total)'
+          : '${l10n.trackReEnrichMetadataSaved} ($saved/$total)',
+      for (final entry in _counts.entries)
+        if (reEnrichLyricsMessage(l10n, entry.key) case final label?)
+          '$label (${entry.value})',
+    ];
+    return lines.join('\n');
+  }
+}