【功能优化】AI：DispatcherType.ASYNC 时，不进行认证，解决 Spring AI SSE 的认证问题

https://github.com/YunaiV/yudao-cloud/issues/197

yudao-framework/yudao-spring-boot-starter-security/src/main/java/cn/iocoder/yudao/framework/security/config/YudaoWebSecurityConfigurerAdapter.java

@@ -7,6 +7,7 @@ import com.google.common.collect.HashMultimap;
 import com.google.common.collect.Multimap;
 import jakarta.annotation.Resource;
 import jakarta.annotation.security.PermitAll;
+import jakarta.servlet.DispatcherType;
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.AutoConfigureOrder;
 import org.springframework.context.ApplicationContext;
@@ -142,7 +143,9 @@ public class YudaoWebSecurityConfigurerAdapter {
                 // ②：每个项目的自定义规则
                 .authorizeHttpRequests(c -> authorizeRequestsCustomizers.forEach(customizer -> customizer.customize(c)))
                 // ③：兜底规则，必须认证
-                .authorizeHttpRequests(c -> c.anyRequest().authenticated());
+                .authorizeHttpRequests(c -> c
+                        .dispatcherTypeMatchers(DispatcherType.ASYNC).permitAll() // WebFlux 异步请求，无需认证，目的：SSE 场景
+                        .anyRequest().authenticated());
 
         // 添加 Token Filter
         httpSecurity.addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);