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>

tests/Feature/ThemeInjectTest.php

@@ -57,7 +57,7 @@ class ThemeInjectTest extends TestCase
             ['point' => 'footer', 'title' => '第二条', 'html' => '<div id="inject-2">second</div>', 'sort' => 2, 'enabled' => true],
         ]);
 
-        $html = $this->get('/posts/inject-test.shtml')->getContent();
+        $html = $this->get('/show-'.Post::where('slug', 'inject-test')->value('id').'.shtml')->getContent();
 
         $pos1 = strpos($html, 'id="inject-1"');
         $pos2 = strpos($html, 'id="inject-2"');
@@ -82,7 +82,7 @@ class ThemeInjectTest extends TestCase
             ['point' => 'post_content_bottom', 'title' => '正文后广告', 'html' => '<div id="post-bottom-ad">BOTTOM</div>', 'sort' => 1, 'enabled' => true],
         ]);
 
-        $html = $this->get('/posts/inject-test.shtml')->getContent();
+        $html = $this->get('/show-'.Post::where('slug', 'inject-test')->value('id').'.shtml')->getContent();
 
         $this->assertStringContainsString('post-top-ad', $html);
         $this->assertStringContainsString('post-bottom-ad', $html);
@@ -97,4 +97,21 @@ class ThemeInjectTest extends TestCase
         // theme('var') 直接可用
         $this->assertSame('<div class="header-ad">头部广告</div>', theme('var', 'ad_header', ''));
     }
+
+    public function test_content_top_and_stylevars_render_on_home(): void
+    {
+        Setting::set('inject.blocks', [
+            ['point' => 'content_top', 'title' => '首页广告', 'html' => '<div id="home-top-ad">首页广告位</div>', 'sort' => 1, 'enabled' => true],
+        ]);
+        Setting::set('theme_vars_sablog', [
+            'ad_header' => '<div class="header-ad">头部广告</div>',
+            'huangjinlian' => '<div class="footer-ad">页脚广告</div>',
+        ]);
+
+        $this->get('/')
+            ->assertOk()
+            ->assertSee('首页广告位', false)
+            ->assertSee('头部广告', false)
+            ->assertSee('页脚广告', false);
+    }
 }