feat(cms): bring per-medium tab grids to ALL-tab parity (§8.C)

Render the rich CmsAlbumBrowser filtered per medium in the CUTS/SESSIONS/MIXES
tabs via an optional RowActions slot; retire the thin CmsMediumTable. Session
hero and Mix waveform actions preserved; ALL tab and TrackList unchanged.

DeepDrftManager/Components/Pages/Tracks/CmsCutBrowser.razor

@@ -2,27 +2,20 @@
 @using DeepDrftModels.DTOs
 @using DeepDrftModels.Enums
 
-@* Cut-filtered release grid for the Release Archive's CUTS tab (Phase 9 §8.A). Derived from the same
-   CmsMediumBrowserBase pattern the Session/Mix browsers use, so a fourth medium would follow the same
-   shape with no parallel path. Cuts carry no medium-specific row action (no hero, no waveform), so the
-   ActionContent slot renders nothing — every row still gets the shared Edit affordance from
-   CmsMediumTable. Embedded as tab content only; it has no standalone @page route. *@
-<CmsMediumTable TRow="CutRow"
-                Rows="Rows"
-                Loading="Loading"
-                ReleaseAccessor="@(row => row.Release)"
-                ThumbUrl="@(key => ThumbUrl(key))"
-                TitleHeader="Cut"
-                EmptyMessage="No cuts found.">
-    <ActionContent Context="row">
-    </ActionContent>
-</CmsMediumTable>
+@* CUTS tab content (Phase 9 §8.A/§8.C): the rich CmsAlbumBrowser grid filtered to Cut releases, so the
+   tab carries expand-tracks, delete, the Type chip, and per-row edit identically to the ALL tab — no
+   forked grid. Cuts have no medium-specific row action, so no RowActions slot is supplied; the grid
+   renders its shared edit/delete only. Embedded as tab content only; no standalone @page route. *@
+<CmsAlbumBrowser Releases="Releases"
+                 IsLoading="Loading"
+                 OnReleasesChanged="ReloadAsync" />
 
 @code {
     protected override ReleaseMedium Medium => ReleaseMedium.Cut;
     protected override string MediumNoun => "cuts";
 
     protected override CutRow ToRow(ReleaseDto release) => new() { Release = release };
+    protected override ReleaseDto ReleaseOf(CutRow row) => row.Release;
 
     public sealed class CutRow
     {