Merge branch 'master' into worktree-mosaic-library

# Conflicts:
#	scripts/extract-traces.test.ts

src/routes/+page.svelte

@@ -118,7 +118,7 @@
   // The shortcut strip is a mosaic row: one height, each tile as wide as its own
   // artwork. It used to force 16:9 on everything so square music covers lined up
   // with wide backdrops — which lined them up by cropping the covers.
-  // TRACES: UR-075 | DR-172
+  // TRACES: UR-075 | DR-174
   const LIBRARY_STRIP_HEIGHT = 132;
   const libraryTiles = $derived(
     shortcutLibraries.map((lib) => ({ key: lib.id, ratio: assumedLibraryRatio(lib), library: lib }))

src/routes/library/+page.svelte

@@ -45,7 +45,7 @@
   // The overview is a mosaic: rows of one height, tiles of their own widths, so
   // a square music cover sits beside a wide backdrop without either being
   // cropped to the other's shape. Each category also gets a favourites tile of
-  // its own, beside the library it belongs to. TRACES: UR-075 | DR-172, DR-173
+  // its own, beside the library it belongs to. TRACES: UR-075 | DR-174, DR-175
   const mosaicEntries = $derived(buildLibraryMosaic(visibleLibraries));
 
   // Track if we've done an initial load and previous server state
@@ -255,7 +255,7 @@
              category's own favourites sits beside its library — a labelled tile
              at the same weight as a library is the difference between a feature
              people find and one they don't. ux-flows §5C.2.
-             TRACES: UR-067, UR-075 | DR-117, DR-172 -->
+             TRACES: UR-067, UR-075 | DR-117, DR-174 -->
         <MosaicGrid items={mosaicEntries} gap={8}>
           {#snippet tile(entry)}
             {#if entry.kind === "favorites"}

src/routes/settings/+page.svelte

@@ -744,10 +744,10 @@
                 </h3>
                 <p class="text-sm text-gray-400 mt-1">
                   Decode video with the device's hardware decoder instead of the
-                  built-in web player. Better performance and battery life, and
-                  required for picture-in-picture to show the video rather than
-                  the app. Still less tested — turn this off if video fails to
-                  appear or seeking misbehaves.
+                  built-in web player. Better performance and battery life in
+                  principle, but incomplete: on some devices the picture does not
+                  appear at all and only the sound plays. Leave this off unless
+                  you are helping test it.
                 </p>
               </div>
               <button