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/composer.json

@@ -0,0 +1,57 @@
+{
+    "name": "endroid/qr-code",
+    "description": "Endroid QR Code",
+    "keywords": ["endroid", "qrcode", "qr", "code", "php"],
+    "homepage": "https://github.com/endroid/qr-code",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Jeroen van den Enden",
+            "email": "info@endroid.nl"
+        }
+    ],
+    "require": {
+        "php": "^8.0",
+        "bacon/bacon-qr-code": "^2.0.5"
+    },
+    "require-dev": {
+        "ext-gd": "*",
+        "endroid/quality": "dev-master",
+        "khanamiryan/qrcode-detector-decoder": "^1.0.4||^2.0.2",
+        "setasign/fpdf": "^1.8.2"
+    },
+    "conflict": {
+        "khanamiryan/qrcode-detector-decoder": "^1.0.6"
+    },
+    "suggest": {
+        "ext-gd": "Enables you to write PNG images",
+        "khanamiryan/qrcode-detector-decoder": "Enables you to use the image validator",
+        "roave/security-advisories": "Makes sure package versions with known security issues are not installed",
+        "setasign/fpdf": "Enables you to use the PDF writer"
+    },
+    "autoload": {
+        "psr-4": {
+            "Endroid\\QrCode\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Endroid\\QrCode\\Tests\\": "tests/"
+        }
+    },
+    "config": {
+        "sort-packages": true,
+        "preferred-install": {
+            "endroid/*": "source"
+        },
+        "allow-plugins": {
+            "endroid/installer": true
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "4.x-dev"
+        }
+    }
+}