feat: initialize Evergreen Health backend

Evergreen.Health.Api/Views/Home/Index.cshtml

@@ -0,0 +1,7 @@
+@{
+    ViewData["Title"] = ViewBag.Description;
+}
+
+<div style="text-align:center;margin-top:50px;">
+    <img src="~/images/logo.png" style="height:100px;" />
+</div>

Evergreen.Health.Api/Views/Shared/_Layout.cshtml

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="zh-cmn-Hans">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>@ViewData["Title"] - Furion</title>
+</head>
+<body>
+    @RenderBody()
+</body>
+</html>

Evergreen.Health.Api/Views/_ViewImports.cshtml

@@ -0,0 +1,2 @@
+@using Evergreen.Health.Api
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

Evergreen.Health.Api/Views/_ViewStart.cshtml

@@ -0,0 +1,3 @@
+@{
+    Layout = "_Layout";
+}