feat(member): enhance product info processing and add new utility methods

- Updated `getProductInfo` method to return processed product information using `buildEffectiveProductInfo`.
- Introduced new private methods for building effective product info, resolving software account levels, and checking special TikTok account status.
- Refactored platform string handling with `appendPlatform` method to ensure unique and sorted platform entries.
- Updated platform name mappings in `PlatformService` for consistency with new naming conventions.

app/api/service/PlatformService.php

@@ -37,13 +37,13 @@ class PlatformService
      * 这里在 API 中直接返回前端所需文案，避免小程序自行猜测。
      */
     private const PLATFORM_NAME_MAP = [
-        0 => '抖音',
-        1 => '快手',
-        2 => '百家号',
-        3 => '小红书',
-        4 => '视频号',
-        5 => 'B站',
-        6 => '公众号',
+        0 => 'D音',
+        1 => 'K手',
+        2 => 'B家号',
+        3 => '小红薯',
+        4 => '视P号',
+        5 => 'B哩哔哩',
+        6 => '公Z号',
         10 => 'TikTok',
     ];
 
@@ -104,7 +104,7 @@ class PlatformService
      * 计算当前用户可见平台。
      *
      * 该逻辑直接对齐 acgpmw `platform::index()`：
-     * 1. 从套餐 `product_list.platforms` 读取平台权限
+     * 1. 先使用已按 `MemberController` 规则加工后的套餐平台权限
      * 2. 若为 146/147 且不在特殊账号名单中，仅允许抖音平台
      *
      * @param Member $member 当前登录用户