chore: 暂时禁用多个定时任务执行逻辑

在相关 Job 的 DoWorkAsync 方法中提前 return，防止自动执行挖矿、行情生成、新闻生成及资产更新等后台任务运行。

Yi.Abp.Net8/src/Yi.Abp.Web/Jobs/ai-stock/GenerateNewsJob.cs

@@ -21,6 +21,7 @@ namespace Yi.Abp.Web.Jobs.ai_stock
 
         public override async Task DoWorkAsync(CancellationToken cancellationToken = new CancellationToken())
         {
+            return;
             // 每次触发只有2/24的概率执行生成新闻
             var random = new Random();
             var probability = random.Next(0, 24);

Yi.Abp.Net8/src/Yi.Abp.Web/Jobs/ai-stock/GenerateStockPricesJob.cs

@@ -20,6 +20,7 @@ namespace Yi.Abp.Web.Jobs.ai_stock
 
         public override async Task DoWorkAsync(CancellationToken cancellationToken = new CancellationToken())
         {
+            return;
             await _stockMarketManager.GenerateStocksAsync();
         }
     }