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/endroid/qr-code/src/Bacon/ErrorCorrectionLevelConverter.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Endroid\QrCode\Bacon;
+
+use BaconQrCode\Common\ErrorCorrectionLevel;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelHigh;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelInterface;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelLow;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelMedium;
+use Endroid\QrCode\ErrorCorrectionLevel\ErrorCorrectionLevelQuartile;
+
+final class ErrorCorrectionLevelConverter
+{
+    public static function convertToBaconErrorCorrectionLevel(ErrorCorrectionLevelInterface $errorCorrectionLevel): ErrorCorrectionLevel
+    {
+        if ($errorCorrectionLevel instanceof ErrorCorrectionLevelLow) {
+            return ErrorCorrectionLevel::valueOf('L');
+        } elseif ($errorCorrectionLevel instanceof ErrorCorrectionLevelMedium) {
+            return ErrorCorrectionLevel::valueOf('M');
+        } elseif ($errorCorrectionLevel instanceof ErrorCorrectionLevelQuartile) {
+            return ErrorCorrectionLevel::valueOf('Q');
+        } elseif ($errorCorrectionLevel instanceof ErrorCorrectionLevelHigh) {
+            return ErrorCorrectionLevel::valueOf('H');
+        }
+
+        throw new \Exception('Error correction level could not be converted');
+    }
+}

vendor/endroid/qr-code/src/Bacon/MatrixFactory.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Endroid\QrCode\Bacon;
+
+use BaconQrCode\Encoder\Encoder;
+use Endroid\QrCode\Matrix\Matrix;
+use Endroid\QrCode\Matrix\MatrixFactoryInterface;
+use Endroid\QrCode\Matrix\MatrixInterface;
+use Endroid\QrCode\QrCodeInterface;
+
+final class MatrixFactory implements MatrixFactoryInterface
+{
+    public function create(QrCodeInterface $qrCode): MatrixInterface
+    {
+        $baconErrorCorrectionLevel = ErrorCorrectionLevelConverter::convertToBaconErrorCorrectionLevel($qrCode->getErrorCorrectionLevel());
+        $baconMatrix = Encoder::encode($qrCode->getData(), $baconErrorCorrectionLevel, strval($qrCode->getEncoding()))->getMatrix();
+
+        $blockValues = [];
+        $columnCount = $baconMatrix->getWidth();
+        $rowCount = $baconMatrix->getHeight();
+        for ($rowIndex = 0; $rowIndex < $rowCount; ++$rowIndex) {
+            $blockValues[$rowIndex] = [];
+            for ($columnIndex = 0; $columnIndex < $columnCount; ++$columnIndex) {
+                $blockValues[$rowIndex][$columnIndex] = $baconMatrix->get($columnIndex, $rowIndex);
+            }
+        }
+
+        return new Matrix($blockValues, $qrCode->getSize(), $qrCode->getMargin(), $qrCode->getRoundBlockSizeMode());
+    }
+}