fix: restyle pager chips and restore theme ad slots

Replace the loose page-count label with a SaBlog-style 6 / 316 chip, wire inject/stylevar HTML into list and post views, and flush page cache when ads are saved.

Co-authored-by: Cursor <cursoragent@cursor.com>

resources/views/tag.blade.php

@@ -7,6 +7,7 @@
         <h1 class="list-title">标签：{{ $tag->name }}</h1>
 
         @include('partials.view-mode-switcher')
+        @include('partials.theme-inject', ['point' => 'content_top'])
 
         @forelse($posts as $post)
             @include('partials.post-card', ['post' => $post])
@@ -15,6 +16,7 @@
         @endforelse
 
         @include('partials.pagination', ['paginator' => $posts])
+        @include('partials.theme-inject', ['point' => 'content_bottom'])
     </main>
     @include('partials.sidebar')
 </div>