feat(web): align the web UI with the design prototype

- Ambient background in the app shell: three drifting blurred blobs,
  the third one tinted with the current track's cover; can be turned off
  in settings and stays still with reduced motion.
- Island player variant (floating glass panel) next to the bar, chosen
  in settings; player source line ("Album · …", "My Wave"), reactions
  around the transport controls, queue drawer.
- Sidebar: like / dislike counters, pending uploads badge on Queue,
  admin Settings page holding the upload queue limits.
- Collection: header tile with kicker, underline tabs, time / number
  lead column with an equalizer for the current track, album column,
  dimmed dislikes with undo, Play all / Shuffle pills.
- Album: cover-tinted header and Play / Shuffle; artist: artist wave,
  Play and popular tracks (new GET /artists/{id}/top-tracks).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/pages/catalog.module.css

@@ -66,6 +66,19 @@
   pointer-events: none;
 }
 
+.tint {
+  position: absolute;
+  inset: 0;
+  pointer-events: none;
+}
+
+.heroActions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+  margin-top: 8px;
+}
+
 .heroBody {
   position: relative;
   display: flex;
@@ -114,3 +127,94 @@
     padding: 20px 16px;
   }
 }
+
+/* Шапка коллекции (макет «Коллекция»): плитка-иконка, надзаголовок, крупный заголовок. */
+.colHero {
+  display: flex;
+  align-items: flex-end;
+  flex-wrap: wrap;
+  gap: 24px;
+}
+
+.tile {
+  display: grid;
+  place-items: center;
+  width: 120px;
+  height: 120px;
+  border-radius: 20px;
+  color: #fff;
+  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
+}
+
+.heroText {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  flex: 1;
+  min-width: 240px;
+}
+
+.kicker {
+  font-size: 13px;
+  font-weight: 600;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--text2);
+}
+
+.colTitle {
+  margin: 0;
+  font-family: var(--font-display);
+  font-size: 40px;
+  font-weight: 600;
+  letter-spacing: -0.02em;
+  line-height: 1;
+}
+
+.heroSub {
+  font-size: 14px;
+  color: var(--text2);
+  text-wrap: pretty;
+}
+
+.underlineTabs {
+  display: flex;
+  gap: 6px;
+  border-bottom: 1px solid var(--line);
+}
+
+.underlineTab {
+  display: inline-flex;
+  align-items: center;
+  height: 42px;
+  padding: 0 14px;
+  margin-bottom: -1px;
+  border-bottom: 2px solid transparent;
+  color: var(--text2);
+  font-size: 15px;
+  font-weight: 500;
+  text-decoration: none;
+}
+
+.underlineTab:hover {
+  color: var(--text);
+}
+
+.underlineTab[aria-selected='true'] {
+  color: var(--text);
+  border-bottom-color: var(--accent);
+}
+
+.day {
+  margin: 0;
+  padding: 8px 12px;
+  font-family: inherit;
+  font-size: 14px;
+  font-weight: 600;
+  color: var(--text2);
+}
+
+.pill {
+  height: 44px;
+  border-radius: var(--radius-pill);
+}