feat: Inertia profile settings page, Studio edit redesign, EGS, Nova UI components\n\n- Redesign /dashboard/profile as Inertia React page (Settings/ProfileEdit)\n with SettingsLayout sidebar, Nova UI components (TextInput, Textarea,\n Toggle, Select, RadioGroup, Modal, Button), avatar drag-and-drop,\n password change, and account deletion sections\n- Redesign Studio artwork edit page with two-column layout, Nova components,\n integrated TagPicker, and version history modal\n- Add shared MarkdownEditor component\n- Add Early-Stage Growth System (EGS): SpotlightEngine, FeedBlender,\n GridFiller, AdaptiveTimeWindow, ActivityLayer, admin panel\n- Fix upload category/tag persistence (V1+V2 paths)\n- Fix tag source enum, category tree display, binding resolution\n- Add settings.jsx Vite entry, settings.blade.php wrapper\n- Update ProfileController with JSON response support for API calls\n- Various route fixes (profile.edit, toolbar settings link)"

resources/views/errors/404.blade.php

@@ -0,0 +1,90 @@
+{{--
+    404 — Generic Not Found
+    Returned when a route has no match.
+    Includes: trending artworks (6), top tags (10), discover CTA.
+--}}
+@extends('errors._layout', [
+    'error_code'    => 404,
+    'error_title'   => '404 — Lost in the Nova',
+    'error_message' => 'This page drifted into deep space. Let\'s get you back on track.',
+])
+
+@section('badge', 'Page Not Found')
+
+@section('primary-cta')
+<a href="/discover/trending"
+   class="inline-flex items-center gap-2 rounded-xl bg-sky-500 hover:bg-sky-400 text-white font-semibold px-6 py-3 text-sm shadow-lg shadow-sky-900/30 transition-colors">
+    <i class="fas fa-compass" aria-hidden="true"></i>
+    Explore Discover
+</a>
+@endsection
+
+@section('secondary-ctas')
+<a href="/explore/wallpapers" class="rounded-xl border border-white/10 hover:border-white/25 text-white/70 hover:text-white px-4 py-2 text-sm transition-colors">
+    Browse Wallpapers
+</a>
+<a href="/search" class="rounded-xl border border-white/10 hover:border-white/25 text-white/70 hover:text-white px-4 py-2 text-sm transition-colors">
+    <i class="fas fa-search mr-1.5" aria-hidden="true"></i> Search
+</a>
+<a href="/" class="rounded-xl border border-white/10 hover:border-white/25 text-white/70 hover:text-white px-4 py-2 text-sm transition-colors">
+    Home
+</a>
+@endsection
+
+@section('recovery')
+
+{{-- Trending artworks --}}
+@if(isset($trendingArtworks) && $trendingArtworks->count())
+<div class="mb-12">
+    <h2 class="text-sm font-semibold text-white/40 uppercase tracking-widest mb-4">Trending Right Now</h2>
+    <div class="grid grid-cols-2 sm:grid-cols-3 lg:grid-cols-6 gap-3">
+        @foreach($trendingArtworks->take(6) as $artwork)
+            @include('errors._artwork-card', ['artwork' => $artwork])
+        @endforeach
+    </div>
+</div>
+@endif
+
+{{-- Top tags --}}
+@if(isset($trendingTags) && $trendingTags->count())
+<div class="mb-12">
+    <h2 class="text-sm font-semibold text-white/40 uppercase tracking-widest mb-4">Popular Tags</h2>
+    <div class="flex flex-wrap gap-2">
+        @foreach($trendingTags->take(10) as $tag)
+        <a href="/tag/{{ $tag->slug }}"
+           class="rounded-full bg-white/5 hover:bg-sky-500/20 border border-white/8 hover:border-sky-500/30 text-white/70 hover:text-sky-300 px-3 py-1 text-xs font-medium transition-colors">
+            #{{ $tag->name }}
+        </a>
+        @endforeach
+    </div>
+</div>
+@endif
+
+{{-- Explore categories --}}
+<div>
+    <h2 class="text-sm font-semibold text-white/40 uppercase tracking-widest mb-4">Explore Categories</h2>
+    <div class="grid grid-cols-2 sm:grid-cols-4 gap-3">
+        <a href="/explore/wallpapers"
+           class="rounded-xl bg-white/3 hover:bg-sky-500/10 border border-white/5 hover:border-sky-500/20 px-4 py-3 flex items-center gap-3 transition-all group">
+            <i class="fas fa-image text-sky-400/60 group-hover:text-sky-400 text-lg" aria-hidden="true"></i>
+            <span class="text-sm font-medium text-white/80 group-hover:text-white">Wallpapers</span>
+        </a>
+        <a href="/explore/skins"
+           class="rounded-xl bg-white/3 hover:bg-sky-500/10 border border-white/5 hover:border-sky-500/20 px-4 py-3 flex items-center gap-3 transition-all group">
+            <i class="fas fa-paint-brush text-sky-400/60 group-hover:text-sky-400 text-lg" aria-hidden="true"></i>
+            <span class="text-sm font-medium text-white/80 group-hover:text-white">Skins</span>
+        </a>
+        <a href="/explore/photography"
+           class="rounded-xl bg-white/3 hover:bg-sky-500/10 border border-white/5 hover:border-sky-500/20 px-4 py-3 flex items-center gap-3 transition-all group">
+            <i class="fas fa-camera text-sky-400/60 group-hover:text-sky-400 text-lg" aria-hidden="true"></i>
+            <span class="text-sm font-medium text-white/80 group-hover:text-white">Photography</span>
+        </a>
+        <a href="/explore/other"
+           class="rounded-xl bg-white/3 hover:bg-sky-500/10 border border-white/5 hover:border-sky-500/20 px-4 py-3 flex items-center gap-3 transition-all group">
+            <i class="fas fa-layer-group text-sky-400/60 group-hover:text-sky-400 text-lg" aria-hidden="true"></i>
+            <span class="text-sm font-medium text-white/80 group-hover:text-white">Other</span>
+        </a>
+    </div>
+</div>
+
+@endsection