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/phpoffice/phpspreadsheet/phpstan-conditional.php

@@ -0,0 +1,86 @@
+<?php
+
+$config = [];
+
+if (PHP_VERSION_ID < 80000) {
+    // GdImage not available before PHP8
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '~^Method .* has invalid return type GdImage\.$~',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Shared/Drawing.php',
+        'count' => 1,
+    ];
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '~^Property .* has unknown class GdImage as its type\.$~',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Worksheet/MemoryDrawing.php',
+        'count' => 1,
+    ];
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '~^Method .* has invalid return type GdImage\.$~',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Worksheet/MemoryDrawing.php',
+        'count' => 1,
+    ];
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '~^Parameter .* of method .* has invalid type GdImage\.$~',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Worksheet/MemoryDrawing.php',
+        'count' => 1,
+    ];
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '~^Class GdImage not found\.$~',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Writer/Xls/Worksheet.php',
+        'count' => 1,
+    ];
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '~^Parameter .* of method .* has invalid type GdImage\.$~',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Writer/Xls/Worksheet.php',
+        'count' => 1,
+    ];
+    // GdImage with Phpstan 1.9.2
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '~Class GdImage not found.*$~',
+        'path' => __DIR__ . '/tests/PhpSpreadsheetTests/Worksheet/MemoryDrawingTest.php',
+        'count' => 3,
+    ];
+    // Erroneous analysis by Phpstan before PHP8 - 3rd parameter is nullable
+    // Fixed for Php7 with Phpstan 1.9.
+    //$config['parameters']['ignoreErrors'][] = [
+    //    'message' => '#^Parameter \\#3 \\$namespace of method XMLWriter\\:\\:startElementNs\\(\\) expects string, null given\\.$#',
+    //    'path' => __DIR__ . '/src/PhpSpreadsheet/Writer/Xlsx/Worksheet.php',
+    //    'count' => 8,
+    //];
+    // Erroneous analysis by Phpstan before PHP8 - mb_strlen does not return false
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '#^Method PhpOffice\\\\PhpSpreadsheet\\\\Shared\\\\StringHelper\\:\\:countCharacters\\(\\) should return int but returns int(<0, max>)?\\|false\\.$#',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Shared/StringHelper.php',
+        'count' => 1,
+    ];
+    // New with Phpstan 1.9.2 for Php7 only
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '#^Parameter \\#2 \\.\\.\\.\\$args of function array_merge expects array, array<int, mixed>\\|false given.$#',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Calculation/LookupRef/Sort.php',
+        'count' => 1,
+    ];
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '#^Parameter \\#1 \\$input of function array_chunk expects array, array<int, float\\|int>\\|false given.$#',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Calculation/MathTrig/MatrixFunctions.php',
+        'count' => 1,
+    ];
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '#^Parameter \\#2 \\$array of function array_map expects array, array<int, float|int>\\|false given.$#',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Calculation/MathTrig/Random.php',
+        'count' => 1,
+    ];
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '#^Parameter \\#2 \\.\\.\\.\\$args of function array_merge expects array, array<int, mixed>\\|false given.$#',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Calculation/TextData/Text.php',
+        'count' => 1,
+    ];
+} else {
+    // Flagged in Php8+ - unsure how to correct code
+    $config['parameters']['ignoreErrors'][] = [
+        'message' => '#^Binary operation "/" between float and array[|]float[|]int[|]string results in an error.#',
+        'path' => __DIR__ . '/src/PhpSpreadsheet/Calculation/MathTrig/Combinations.php',
+        'count' => 1,
+    ];
+}
+
+return $config;