feat(ai): 集成DashScope AI聊天功能并配置加密支持

- 添加DashScope AI配置项，包括API密钥和模型参数
- 实现ChatClient配置类用于构建AI聊天客户端
- 创建控制器接口支持用户通过HTTP请求与AI交互
- 引入Jasypt加密库用于敏感信息加密
- 添加Spring AI和Alibaba DashScope依赖管理- 升级项目依赖并引入WebFlux支持异步处理

src/main/java/com/hanserwei/snailsai/controller/DashScopeController.java

@@ -0,0 +1,24 @@
+package com.hanserwei.snailsai.controller;
+
+import jakarta.annotation.Resource;
+import org.springframework.ai.chat.client.ChatClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RequestMapping("/dashscope")
+@RestController
+public class DashScopeController {
+
+    @Resource
+    private ChatClient dashScopeChatClient;
+
+    @GetMapping("/chat")
+    public String chat(@RequestParam("userPrompt") String userPrompt) {
+        return dashScopeChatClient.prompt()
+                .user(userPrompt)
+                .call()
+                .content();
+    }
+}