chore: 添加缺失的静态资源文件

添加多个前端界面所需的图片、字体、音频等静态资源文件，包括：
- 管理员后台的图标、背景图、组件图片
- 移动端页面的商品图片、用户中心图片、活动图标
- 第三方库的示例图片和字体文件
- 浏览器兼容性配置文件
- 图标字体文件（eot、ttf、woff、woff2格式）

这些资源是前端界面正常显示所必需的，之前可能因版本控制忽略或遗漏而缺失。

vendor/doctrine/lexer/phpcs.xml.dist

@@ -0,0 +1,35 @@
+<?xml version="1.0"?>
+<ruleset>
+    <arg name="basepath" value="."/>
+    <arg name="extensions" value="php"/>
+    <arg name="parallel" value="80"/>
+    <arg name="cache" value=".phpcs-cache"/>
+    <arg name="colors" />
+
+    <config name="php_version" value="70100"/>
+
+    <!-- Ignore warnings and show progress of the run -->
+    <arg value="np"/>
+
+    <file>src</file>
+    <file>tests</file>
+
+    <rule ref="Doctrine">
+        <!-- Traversable type hints often end up as mixed[], so we skip them for now -->
+        <exclude name="SlevomatCodingStandard.TypeHints.PropertyTypeHint.MissingTraversableTypeHintSpecification" />
+        <exclude name="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingTraversableTypeHintSpecification" />
+        <exclude name="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingTraversableTypeHintSpecification" />
+
+        <!-- Will cause BC breaks to method signatures - disabled for now -->
+        <exclude name="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint" />
+        <exclude name="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingNativeTypeHint" />
+
+        <!-- Disabled to avoid class renaming - to be handled in a separate PR -->
+        <exclude name="SlevomatCodingStandard.Classes.SuperfluousAbstractClassNaming" />
+    </rule>
+
+    <rule ref="SlevomatCodingStandard.Commenting.RequireOneLineDocComment.MultiLineDocComment">
+        <!-- Remove when dropping PHPUnit 7 -->
+        <exclude-pattern>tests/*</exclude-pattern>
+    </rule>
+</ruleset>