fix: [attach] 短代码跨文章全局解析 + 缺失残留清理；损坏附件导入降级不中断；media 导入幂等；sablog:import 支持 sqlite 老库 + 5 个导入自动化测试

app/Console/Commands/SablogImport.php

@@ -18,6 +18,7 @@ use Spatie\Tags\Tag;
 class SablogImport extends Command
 {
     protected $signature = 'sablog:import
+        {--driver=mysql : 老库驱动（mysql / sqlite，测试可用 sqlite）}
         {--host=127.0.0.1 : 老库主机}
         {--port=3306 : 老库端口}
         {--database= : 老库名（必填）}
@@ -81,6 +82,17 @@ class SablogImport extends Command
 
     private function connect(string $database): void
     {
+        $driver = $this->option('driver');
+
+        if ($driver === 'sqlite') {
+            $this->db = new PDO('sqlite:'.$database, null, null, [
+                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            ]);
+
+            return;
+        }
+
         $dsn = sprintf(
             'mysql:host=%s;port=%s;dbname=%s;charset=utf8mb4',
             $this->option('host'),
@@ -94,6 +106,17 @@ class SablogImport extends Command
         ]);
     }
 
+    private function hasTable(string $table): bool
+    {
+        try {
+            $this->db->query("SELECT COUNT(*) FROM `{$this->prefix}{$table}` LIMIT 1");
+
+            return true;
+        } catch (\Throwable) {
+            return false;
+        }
+    }
+
     private function rows(string $table): array
     {
         return $this->db->query('SELECT * FROM `'.$this->prefix.$table.'`')->fetchAll();
@@ -349,7 +372,7 @@ class SablogImport extends Command
 
     private function importAttachments(): void
     {
-        if (! $this->db->query('SHOW TABLES LIKE "'.$this->prefix.'attachments"')->fetchColumn()) {
+        if (! $this->hasTable('attachments')) {
             return;
         }