feat: 初始化导航网站项目

添加 Flask 导航站应用，包含 Docker 部署配置、SQLite 数据库、静态资源及 CI/CD 流水线。

templates/base/menu.html

@@ -0,0 +1,26 @@
+<!-- default -->
+<div class="ui container">
+    <div class="ui large borderless inverted menu" style="border: none;">
+        <div class="toc link icon item"><i class="sidebar icon"></i></div>
+        <a class="header item" href="/">
+            <div class="ui middle aligned image">
+                <img class="logo-image" src="/static/images/logo-white.svg" alt="Logo">
+            </div>
+            <div class="logo-text">Wali-Navi</div>
+        </a>
+        <a class="item" href="/"><i class="home icon"></i>首页</a>
+        <a class="item" href="/customize.html"><i class="tools icon"></i>定制化</a>
+        <a class="item" href="/analytics.html"><i class="chart bar icon"></i>访客分析</a>
+        <div class="right menu">
+            {% if get_user() == None %}
+            <a class="item" href="/login" data-content="Login"><i class="sign in alternate icon"></i></a>
+            <a class="item" href="/register" data-content="Sign-Up"><i class="user plus icon"></i></a>
+            {% else %}
+            <a id="username" class="item" href="/customize.html" target="_blank" data-user="{{get_user()}}">
+                <div id="user-avatar" style="width:30px;height:30px;"></div> {{ get_user() }}
+            </a>
+            <a class="item" href="/logout"><i class="icon sign out alternate"></i></a>
+            {% endif %}
+        </div>
+    </div>
+</div>