fix(run): 增强数据库初始化与安全配置

- 从环境变量读取密钥，未设置时随机生成
- 自动初始化数据库并显式使用 UTF-8 读取 schema
- 移除默认管理员账号，更新页面署名与链接
- 新增 .gitignore、LICENSE 和 README

templates/base/base.html

@@ -10,12 +10,12 @@
 
     <title>瓦力导航 · wali-Navi | A Navigation Website for wali</title>
     <meta property="og:title" content="瓦力导航 · wali-Navi" />
-    <meta name="author" content="iROCKBUNNY" />
+    <meta name="author" content="wali-Navi" />
     <meta property="og:locale" content="zh_CN" />
     <meta name="description" content="A Navigation Website for wali" />
     <meta property="og:description" content="A Navigation Website for wali" />
-    <link rel="canonical" href="https://nav.iwali.top/" />
-    <meta property="og:url" content="https://nav.iwali.top/" />
+    <link rel="canonical" href="/" />
+    <meta property="og:url" content="/" />
     <meta property="og:site_name" content="瓦力导航 · wali-Navi" />
     <meta property="og:type" content="website" />
     <meta name="twitter:card" content="summary" />