refactor(member, auth): streamline product info retrieval and enhance dashboard statistics

- Updated `getProductInfo` method in `Member` model to use a unified model for fetching product data.
- Refactored `logLogin` method to utilize `MemberLoginLog` for logging login attempts.
- Introduced `getDashboardStats` method in `AuthService` to gather user-specific statistics, including remaining quotas and counts of authorized accounts, published tasks, and works.
- Added new database configuration for Douyin business statistics.

app/api/model/ProductList.php

@@ -0,0 +1,34 @@
+<?php
+declare(strict_types=1);
+
+namespace app\api\model;
+
+use think\Model;
+
+/**
+ * 套餐模型（对应业务库 product_list 表）
+ *
+ * 该模型用于读取会员套餐配置，供登录态与首页工作台展示使用。
+ */
+class ProductList extends Model
+{
+    // 套餐配置存放在业务库。
+    protected $connection = 'dbbiz';
+
+    // 对齐原系统 product_list 表。
+    protected $name = 'product_list';
+
+    // 当前项目仅做读取，不依赖自动时间戳。
+    protected $autoWriteTimestamp = false;
+
+    /**
+     * 按套餐类型获取套餐信息。
+     *
+     * @param int $vType 套餐类型
+     * @return self|null
+     */
+    public static function findByVType(int $vType): ?self
+    {
+        return self::where('v_type', $vType)->find();
+    }
+}