dev: 渲染服务和文件内容服务

YaeBlog.Core/Models/BlogEssay.cs

@@ -0,0 +1,10 @@
+namespace YaeBlog.Core.Models;
+
+public class BlogEssay
+{
+    public required string Title { get; init; }
+
+    public required DateTime PublishTime { get; init; }
+
+    public required string HtmlContent { get; init; }
+}