fix: resolve PHPStan static analysis warnings

app/Support/Setting.php

@@ -32,10 +32,11 @@ class Setting
     /**
      * 设置配置信息.
      *
-     * @param  array  $data
-     * @return $this
+     * @param  string  $key
+     * @param  mixed  $value
+     * @return bool 设置是否成功
      */
-    public function set($key, $value = null): bool
+    public function set(string $key, $value = null): bool
     {
         if (is_array($value)) {
             $value = json_encode($value);
@@ -50,12 +51,12 @@ class Setting
     /**
      * 保存配置到数据库.
      *
-     * @param  array  $data
-     * @return $this
+     * @param  array  $settings 要保存的设置数组
+     * @return bool 保存是否成功
      */
-    public function save(array $data = []): bool
+    public function save(array $settings): bool
     {
-        foreach ($data as $key => $value) {
+        foreach ($settings as $key => $value) {
             $this->set($key, $value);
         }
 
@@ -99,4 +100,22 @@ class Setting
     {
         return $this->fromDatabase();
     }
+
+    /**
+     * 更新单个设置项
+     * 
+     * @param string $key 设置键名
+     * @param mixed $value 设置值
+     * @return bool 更新是否成功
+     */
+    public function update(string $key, $value): bool
+    {
+        if (is_array($value)) {
+            $value = json_encode($value);
+        }
+        $key = strtolower($key);
+        SettingModel::updateOrCreate(['name' => $key], ['value' => $value]);
+        $this->cache->forget(self::CACHE_KEY);
+        return true;
+    }
 }