refactor: fix param types

Author: kenjis

system/CLI/CLI.php

@@ -256,7 +256,7 @@ public static function prompt(string $field, $options = null, $validation = null
         static::fwrite(STDOUT, $field . (trim($field) ? ' ' : '') . $extraOutput . ': ');
 
         // Read the input from keyboard.
-        $input = trim(static::$io->input()) ?: $default;
+        $input = trim(static::$io->input()) ?: (string) $default;
 
         if ($validation !== []) {
             while (! static::validate('"' . trim($field) . '"', $input, $validation)) {

system/Commands/Database/MigrateStatus.php

@@ -127,7 +127,7 @@ public function run(array $params)
                         continue;
                     }
 
-                    $date  = date('Y-m-d H:i:s', $row->time);
+                    $date  = date('Y-m-d H:i:s', (int) $row->time);
                     $group = $row->group;
                     $batch = $row->batch;
                     // @codeCoverageIgnoreEnd