feat: topbar legacy-sync button, card view mode with cover fallback, year/month/day archives, richer page cache admin, stylevar repeater editor

- topbar: Livewire LegacySyncButton next to 写文章 (moved from user menu)
- view modes: add 图文(card) grid with cover fallback chain (cover → attachment → first content image → placeholder); list mode now title-only compact
- archives: year/month/day index grid
- page cache admin: size + expiry columns, total size, cache policy note
- theme inject: stylevars switch from KeyValue to Repeater with multi-line HTML editing
- import: html_entity_decode for category/post-title/link/keywords/comment author

resources/views/archives.blade.php

@@ -8,20 +8,32 @@
         @include('partials.theme-inject', ['point' => 'content_top'])
 
         @forelse($archives as $year => $months)
-            <h2 class="archive-year">{{ $year }} 年</h2>
-            <ul class="archive-list">
-                @foreach($months as $month => $monthPosts)
-                    <li>
-                        <a wire:navigate href="{{ route('archives.month', $year.$month) }}">{{ (int) $month }} 月</a>
-                        <span class="count">({{ $monthPosts->count() }} 篇)</span>
-                        <ul class="archive-posts">
-                            @foreach($monthPosts as $post)
-                                <li><a wire:navigate href="{{ route('posts.show', $post->id) }}">{{ $post->title }}</a> <time>{{ $post->published_at->format(blog_setting('listtime', 'm-d')) }}</time></li>
-                            @endforeach
-                        </ul>
-                    </li>
-                @endforeach
-            </ul>
+            <section class="archive-year-block">
+                <h2 class="archive-year">{{ $year }} 年</h2>
+                <div class="archive-months">
+                    @foreach(range(1, 12) as $month)
+                        @php $days = $months[$month] ?? []; @endphp
+                        <div class="archive-month {{ count($days) ? 'has-posts' : 'is-empty' }}">
+                            @if(count($days))
+                                <a wire:navigate class="archive-month-title" href="{{ route('archives.month', $year.str_pad((string) $month, 2, '0', STR_PAD_LEFT)) }}">
+                                    {{ $month }} 月 <span class="count">({{ collect($days)->flatten(1)->count() }})</span>
+                                </a>
+                                <div class="archive-days">
+                                    @foreach($days as $day => $dayPosts)
+                                        @if(count($dayPosts) === 1)
+                                            <a wire:navigate href="{{ route('posts.show', $dayPosts[0]->id) }}" class="archive-day" title="{{ $dayPosts[0]->title }}">{{ $day }}</a>
+                                        @else
+                                            <a wire:navigate href="{{ route('archives.month', $year.str_pad((string) $month, 2, '0', STR_PAD_LEFT)) }}" class="archive-day" title="{{ implode('、', array_map(fn ($p) => $p->title, $dayPosts)) }}">{{ $day }}</a>
+                                        @endif
+                                    @endforeach
+                                </div>
+                            @else
+                                <span class="archive-month-title">{{ $month }} 月</span>
+                            @endif
+                        </div>
+                    @endforeach
+                </div>
+            </section>
         @empty
             <div class="empty">暂无归档</div>
         @endforelse