feat(search): scoped live search on browse pages (#938)

* feat(artists): scoped live search badge replaces page filter

Move Artists browse text search into the header Live Search with a page
scope badge (Users icon), field-local undo, and double-click/backspace
to clear scope. Block the live-search dropdown while scoped so results
only filter the Artists grid; mobile overlay follows the same rules.

* fix(artists): plain grid for scoped search fixes broken card layout

Route the browse grid through VirtualCardGrid, switch to non-virtual CSS
grid when live search filters the catalog, reset scroll on filter changes,
and skip content-visibility on plain tiles to avoid blank/black cards.

* fix(search): scope badge double-Backspace and single clear control

Require two Backspaces on an empty scoped field after prior text input;
one Backspace still clears the badge when the field was never filled.
Move live-search clear/advanced controls inside the field pill, drop the
extra outer clear button, and use type=text to avoid native search clears.

* fix(search): drop duplicate outer live-search clear button

Keep the native in-field clear on type=search and the original pill layout;
remove only the extra × control outside the search border. Reset dropdown
state when the query is cleared via the native control.

* refactor(search): generic scoped browse query helper, drop dead code

Rename artistsBrowseSearchQuery to scopedBrowseSearchQuery with an
expectedScope argument; wire Artists via useScopedBrowseSearchQuery.
Remove unused liveSearchScoped dropdown helper (scoped mode blocks it).

* feat(search): ghost scope badge and single-click badge remove

After clearing the artists scope on /artists, show a faded ghost chip to
restore page-only search while keeping the global search placeholder.
Active badge removes on one click; tooltips and styles updated.

* feat(search): scoped live search for All Albums and New Releases

Wire albums and newReleases scope badges with debounced album title search
(local index title-only FTS + filtered search3). Plain grid, scroll reset,
and session query restore on album grid browse pages.

* fix(browse): preserve scroll restore after album/artist detail back

Only reset in-page scroll when filter resetKey changes, not when
isScrollRestorePending clears after session restore.

* feat(search): scoped live search for Tracks browse

Wire /tracks to header live search with wide title/artist/album FTS,
hide hero and discovery rails while search is active, and remove the
inline search field from the browse list.

* fix(search): clear header query when leaving scoped browse pages

Prevent global live search from firing on album/detail routes after a
scoped browse query; browse session stashes still restore on back.

* fix(tracks): restore scroll after back from detail during scoped search

Hold stashed song results across fetchSongPage churn, defer leave-stash
teardown past AppShell scroll reset, restore tracks scroll after the list
is ready, and save scroll snapshot when opening artist from song context menu.

* fix(tracks): hide discovery headings during scoped search

Hide the page subtitle and "Browse all tracks" section title when
tracks search is active, matching hero/rails chrome behavior.

* feat(search): scoped live search for Composers browse

Wire /composers to header live search with composers scope badge,
session stash, scroll restore, and plain grid/list during text filter.
Remove the in-page filter input; add i18n and navigation helpers.

* docs: CHANGELOG and credits for scoped browse live search (PR #938)

src/hooks/useAlbumGridBrowseFilters.ts

@@ -10,6 +10,7 @@ import {
   useAlbumBrowseSessionStore,
 } from '../store/albumBrowseSessionStore';
 import { shouldRestoreAlbumBrowseSession } from '../utils/navigation/albumDetailNavigation';
+import { useLiveSearchScopeStore } from '../store/liveSearchScopeStore';
 import {
   inpageScrollViewportIdForSurface,
   readInpageScrollTop,
@@ -53,8 +54,11 @@ export function useAlbumGridBrowseFilters(
 
   const [selectedGenres, setSelectedGenres] = useState<string[]>(() => initialState.selectedGenres);
   const restoredFromStashRef = useRef(false);
-  const filtersRef = useRef({ selectedGenres });
-  filtersRef.current = { selectedGenres };
+  const filtersRef = useRef({ selectedGenres, searchQuery: '' });
+  filtersRef.current = {
+    selectedGenres,
+    searchQuery: useLiveSearchScopeStore.getState().query,
+  };
 
   useEffect(() => {
     restoredFromStashRef.current = false;
@@ -66,8 +70,11 @@ export function useAlbumGridBrowseFilters(
     if (shouldRestoreAlbumBrowseSession(navigationType, location.state)) {
       restoredFromStashRef.current = true;
       const restored = useAlbumBrowseSessionStore.getState().peekReturnStash(serverId, surface);
-      if (restored && !sameGenreSelection(restored.selectedGenres, filtersRef.current.selectedGenres)) {
-        setSelectedGenres(restored.selectedGenres);
+      if (restored) {
+        useLiveSearchScopeStore.getState().setQuery(restored.searchQuery ?? '');
+        if (!sameGenreSelection(restored.selectedGenres, filtersRef.current.selectedGenres)) {
+          setSelectedGenres(restored.selectedGenres);
+        }
       }
       return;
     }
@@ -75,6 +82,7 @@ export function useAlbumGridBrowseFilters(
     if (restoredFromStashRef.current) return;
 
     useAlbumBrowseSessionStore.getState().clearReturnStash(serverId, surface);
+    useLiveSearchScopeStore.getState().setQuery('');
     setSelectedGenres([]);
   }, [serverId, surface, navigationType, location.state]);
 
@@ -93,6 +101,7 @@ export function useAlbumGridBrowseFilters(
         useAlbumBrowseSessionStore.getState().stashReturnFilters(serverId, surface, {
           ...DEFAULT_ALBUM_BROWSE_RETURN_FILTERS,
           selectedGenres: filtersRef.current.selectedGenres,
+          searchQuery: filtersRef.current.searchQuery,
           scrollTop,
           displayCount: gridSnapshot?.albums.length ?? scrollSnapshot?.displayCount,
           albums: gridSnapshot?.albums,