feat: implement database management API with MySQL driver and schema operations

backend/app/Contracts/DatabaseDriverInterface.php

@@ -83,4 +83,14 @@ interface DatabaseDriverInterface
      * Create a new database.
      */
     public function createDatabase(string $name, string $charset = 'utf8mb4', string $collation = 'utf8mb4_unicode_ci'): bool;
+
+    /**
+     * Drop a database.
+     */
+    public function dropDatabase(string $name): bool;
+
+    /**
+     * Rename a database.
+     */
+    public function renameDatabase(string $oldName, string $newName): bool;
 }