初始化仓库及v1.0.0提交

app/Models/Config.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Models;
+
+use App\Config\Database;
+
+class Config
+{
+    public static function getByKey(string $key): ?array
+    {
+        $db = Database::getInstance();
+        $stmt = $db->prepare('SELECT * FROM config WHERE config_key = :config_key');
+        $stmt->execute(['config_key' => $key]);
+        $result = $stmt->fetch();
+        return $result ?: null;
+    }
+
+    public static function setByKey(string $key, string $value): bool
+    {
+        $db = Database::getInstance();
+        $stmt = $db->prepare('INSERT INTO config (config_key, config_value) VALUES (:config_key, :config_value) ON DUPLICATE KEY UPDATE config_value = VALUES(config_value)');
+        return $stmt->execute([
+            'config_key' => $key,
+            'config_value' => $value,
+        ]);
+    }
+}