update 优化 将框架内的 sse ws 统一走认证处理器 不再自行排除编码处理

update 适配 snail-ai 的 spring-ai 版本过低问题 先降级spring-ai版本到m4等后续适配

ruoyi-modules/ruoyi-ai/src/main/java/org/dromara/ai/controller/SnailAiController.java

@@ -19,6 +19,7 @@ import com.aizuda.snail.ai.openapi.client.core.api.OpenApiChatClient;
 import com.aizuda.snail.ai.openapi.client.core.api.OpenApiConversationClient;
 import com.aizuda.snail.ai.openapi.client.core.api.OpenApiUserClient;
 import com.aizuda.snail.ai.openapi.client.core.listener.SseEventListener;
+import jakarta.servlet.http.HttpServletResponse;
 import jakarta.validation.constraints.Min;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
@@ -190,7 +191,9 @@ public class SnailAiController extends BaseController {
     @PostMapping(value = "/agent/{agentId}/chat/stream", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
     public SseEmitter chatStream(
             @NotNull(message = "智能体ID不能为空") @PathVariable Long agentId,
-            @RequestBody OpenApiChatRequest request) {
+            @RequestBody OpenApiChatRequest request,
+            HttpServletResponse response) {
+        prepareSseResponse(response);
         SseEmitter emitter = new SseEmitter(SSE_TIMEOUT);
         AtomicBoolean closed = new AtomicBoolean(false);
         emitter.onTimeout(() -> {
@@ -303,6 +306,18 @@ public class SnailAiController extends BaseController {
         }
     }
 
+    /**
+     * 设置 SSE 响应头，覆盖统一鉴权成功路径中的默认 JSON 响应类型。
+     *
+     * @param response 当前响应
+     */
+    private void prepareSseResponse(HttpServletResponse response) {
+        response.setContentType(MediaType.TEXT_EVENT_STREAM_VALUE);
+        response.setCharacterEncoding("UTF-8");
+        response.setHeader("Cache-Control", "no-cache");
+        response.setHeader("X-Accel-Buffering", "no");
+    }
+
     /**
      * 获取当前登录用户对应的 openId，不存在时会自动注册。
      */