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

app/Console/Commands/SablogImport.php

@@ -215,6 +215,7 @@ class SablogImport extends Command
     {
         $count = 0;
         foreach ($this->rows('categories') as $row) {
+            $row['name'] = html_entity_decode((string) $row['name'], ENT_QUOTES | ENT_HTML5, 'UTF-8');
             $slug = SlugGenerator::make($row['name'], 'categories', 'slug', ignoreId: (int) $row['cid'], fallback: 'category-'.$row['cid']);
             DB::table('categories')->updateOrInsert(['id' => (int) $row['cid']], [
                 'name' => $row['name'],
@@ -291,7 +292,7 @@ class SablogImport extends Command
             DB::table('posts')->updateOrInsert(['id' => (int) $row['articleid']], [
                 'category_id' => $categoryId,
                 'user_id' => (int) $row['uid'] ?: null,
-                'title' => $row['title'],
+                'title' => html_entity_decode((string) $row['title'], ENT_QUOTES | ENT_HTML5, 'UTF-8'),
                 'slug' => $slug,
                 'excerpt' => $row['description'] ?: null,
                 'content' => $row['content'],
@@ -323,6 +324,7 @@ class SablogImport extends Command
         // 而不是 sablog_tags.aids（那个映射是错的/过时的）
         foreach ($this->rows('articles') as $row) {
             $keywords = trim((string) ($row['keywords'] ?? ''));
+            $keywords = html_entity_decode($keywords, ENT_QUOTES | ENT_HTML5, 'UTF-8');
             if ($keywords === '') {
                 continue;
             }
@@ -371,7 +373,7 @@ class SablogImport extends Command
         foreach ($this->rows('comments') as $row) {
             DB::table('comments')->updateOrInsert(['id' => (int) $row['commentid']], [
                 'post_id' => (int) $row['articleid'],
-                'author_name' => $row['author'] ?: '匿名',
+                'author_name' => html_entity_decode((string) ($row['author'] ?: '匿名'), ENT_QUOTES | ENT_HTML5, 'UTF-8'),
                 'author_url' => $row['url'] ?: null,
                 'content' => $row['content'],
                 'ip' => $row['ipaddress'] ?: null,
@@ -389,7 +391,7 @@ class SablogImport extends Command
         $count = 0;
         foreach ($this->rows('links') as $row) {
             DB::table('links')->updateOrInsert(['id' => (int) $row['linkid']], [
-                'name' => $row['name'],
+                'name' => html_entity_decode((string) $row['name'], ENT_QUOTES | ENT_HTML5, 'UTF-8'),
                 'url' => $row['url'],
                 'note' => $row['note'] ?: null,
                 'display_order' => (int) $row['displayorder'],