chore: 添加静态资源文件和版本配置文件

添加大量图片、字体、音频等静态资源文件，包括用户界面图片、模板文件和安装界面素材
添加系统版本配置文件(.version)和常量定义文件(.constant)
更新供应商依赖文件，包括Symfony VarDumper组件和相关许可证文件
添加验证码配置文件(captcha.php)和.gitignore规则

crmeb/services/LockService.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace crmeb\services;
+
+use think\exception\ValidateException;
+use think\facade\Cache;
+
+class LockService
+{
+    /**
+     * @param $key
+     * @param $fn
+     * @param int $ex
+     * @return mixed
+     * @author 吴汐
+     * @email 442384644@qq.com
+     * @date 2023/03/01
+     */
+    public function exec($key, $fn, int $ex = 6)
+    {
+        try {
+            if ($this->lock($key, $key, $ex))
+            	return $fn();
+			else throw new ValidateException('请求太过频繁，请稍后再试');
+        } finally {
+            $this->unlock($key, $key);
+        }
+    }
+
+    public function tryLock($key, $value = '1', $ex = 6)
+    {
+        return Cache::store('redis')->handler()->set('lock_' . $key, $value, ["NX", "EX" => $ex]);
+    }
+
+    public function lock($key, $value = '1', $ex = 6)
+    {
+        if ($this->tryLock($key, $value, $ex)) {
+            return true;
+        } else {
+			return false;
+		}
+    }
+
+    public function unlock($key, $value = '1')
+    {
+        $script = <<< EOF
+if (redis.call("get", "lock_" .. KEYS[1]) == ARGV[1]) then
+	return redis.call("del", "lock_" .. KEYS[1])
+else
+	return 0
+end
+EOF;
+        return Cache::store('redis')->handler()->eval($script, [$key, $value], 1) > 0;
+    }
+}