web-player: normalize tracks, albums and playlists into single domain types at the server boundary

web-player/src/lib/components/player/PlayerBar.svelte

@@ -12,7 +12,7 @@
 	import ListMusic from '@lucide/svelte/icons/list-music';
 
 	function seek(value: number) {
-		if (player.current.duration > 0) player.seekFraction(value / player.current.duration);
+		if (player.duration > 0) player.seekFraction(value / player.duration);
 	}
 </script>
 
@@ -39,13 +39,13 @@
 			</span>
 			<Slider
 				value={player.progress}
-				max={player.current.duration}
+				max={player.duration}
 				label="Barra de progreso"
 				oninput={seek}
 				variant="seek"
 			/>
 			<span class="min-w-8 text-xs text-fg-2 tabular-nums">
-				{fmtTime(player.current.duration)}
+				{fmtTime(player.duration)}
 			</span>
 		</div>
 	</div>

web-player/src/lib/components/player/Queue.svelte

@@ -53,7 +53,7 @@
 			</IconButton>
 		</div>
 
-		{#if player.current.id}
+		{#if player.current}
 			<p class="mb-3 text-eyebrow text-fg-2">Reproduciendo</p>
 			<div class="mb-6 surface-active rounded-control p-2.5">
 				<MediaIdentity

web-player/src/lib/components/player/TrackInfo.svelte

@@ -13,27 +13,20 @@
 
 	let { compact = false }: Props = $props();
 
-	const isLiked = $derived(player.current.id !== '' && liked.isLiked(player.current.id));
+	const current = $derived(player.current);
+	const isLiked = $derived(current !== null && liked.isLiked(current.id));
 
 	function toggleLike() {
-		if (!player.current.id) return;
-		liked.toggle({
-			id: player.current.id,
-			title: player.current.title,
-			artist: player.current.artist,
-			explicit: player.current.explicit,
-			ownerUserId: player.current.ownerUserId,
-			duration: player.current.duration
-		});
+		if (current) liked.toggle(current);
 	}
 </script>
 
 <div class="flex min-w-0 items-center gap-2.5 md:gap-3">
-	{#if player.current.id}
+	{#if current}
 		<Artwork
-			trackIds={[player.current.id]}
+			trackIds={[current.id]}
 			size="sm"
-			alt={player.current.title}
+			alt={current.title}
 			class="shrink-0 md:size-cover-md"
 		/>
 	{:else}
@@ -41,14 +34,14 @@
 	{/if}
 	<div class="min-w-0">
 		<div class="flex min-w-0 items-center gap-1.5">
-			{#if player.current.explicit}
+			{#if current?.explicit}
 				<ExplicitBadge />
 			{/if}
-			<span class="truncate text-sm text-fg">{player.current.title}</span>
+			<span class="truncate text-sm text-fg">{current?.title ?? ''}</span>
 		</div>
 		<ArtistLink
-			name={player.current.artist || '—'}
-			ownerUserId={player.current.ownerUserId}
+			name={current?.artist || '—'}
+			ownerUserId={current?.ownerUserId}
 			class="mt-0.5 text-xs text-fg-2"
 		/>
 	</div>

web-player/src/lib/components/ui/media/TrackList.svelte

@@ -1,18 +1,9 @@
 <script lang="ts" module>
+	import type { Track } from '$lib/types';
+
 	export type TrackListColumn = 'added' | 'uploaded' | 'plays';
 
-	export interface TrackListTrack {
-		id: string | number;
-		title: string;
-		artist?: string | null;
-		ownerUserId?: string | number | null;
-		isExplicit?: boolean;
-		explicit?: boolean;
-		duration?: number | string;
-		listensCount?: number | string;
-		addedAt?: string | number;
-		uploadedAt?: string | number;
-	}
+	export type TrackListTrack = Track & { date?: string | number };
 
 	const COLUMN_PRESET: Record<TrackListColumn, { label: string; width: string }> = {
 		added: { label: 'Añadida', width: '124px' },
@@ -108,7 +99,7 @@
 	</div>
 	<div class="mt-1 flex flex-col gap-0.5" role="list">
 		{#each tracks as track, i (track.id)}
-			{@const active = player.current.id === track.id}
+			{@const active = player.currentId === track.id}
 
 			<div
 				role="listitem"
@@ -145,7 +136,7 @@
 						title={track.title}
 						artist={track.artist}
 						ownerUserId={track.ownerUserId}
-						explicit={track.isExplicit ?? track.explicit ?? false}
+						explicit={track.explicit}
 						{active}
 					>
 						{#snippet overlay()}
@@ -158,16 +149,14 @@
 				{#each columns as column (column)}
 					<span class="hidden truncate text-center text-xs text-fg-2 tabular-nums sm:block">
 						{#if column === 'plays'}
-							{Number(track.listensCount ?? 0)}
-						{:else if column === 'added' && track.addedAt}
-							{fmtDate(track.addedAt)}
-						{:else if column === 'uploaded' && track.uploadedAt}
-							{fmtDate(track.uploadedAt)}
+							{track.listensCount}
+						{:else if track.date}
+							{fmtDate(track.date)}
 						{/if}
 					</span>
 				{/each}
 				<span class="truncate text-center text-xs text-fg-2 tabular-nums">
-					{fmtTime(Number(track.duration))}
+					{fmtTime(track.duration)}
 				</span>
 				{#if rowAction}
 					{#if rowAction.action}