refactor(llmx): 将 LLMProvider 接口中的 chat 方法返回类型改为 Publisher

修改了 LLMProvider 接口和 BaiLianProvider 实现类中的 chat 方法，将返回类型从 Flow 改为 Publisher，以适应 Spring WebFlux 的数据处理方式。这一变更使得系统能够更好地集成和使用 Spring WebFlux 的特性。

llmx-core/llmx-core-spi/src/main/kotlin/org/jcnc/llmx/core/spi/provider/LLMProvider.kt

@@ -1,12 +1,11 @@
 package org.jcnc.llmx.core.spi.provider
 
-import kotlinx.coroutines.flow.Flow
 import org.jcnc.llmx.core.spi.entities.request.ChatRequest
 import org.jcnc.llmx.core.spi.entities.request.EmbeddingRequest
 import org.jcnc.llmx.core.spi.entities.response.ChatResponsePart
 import org.jcnc.llmx.core.spi.entities.response.EmbeddingResponse
+import org.reactivestreams.Publisher
 import org.springframework.http.MediaType
-
 import org.springframework.web.bind.annotation.PostMapping
 import org.springframework.web.bind.annotation.RequestMapping
 
@@ -31,7 +30,7 @@ interface LLMProvider {
      * @return 返回一个Flow流，通过该流可以接收到聊天响应的部分数据，如消息、状态更新等
      */
     @PostMapping("/chat", produces = [MediaType.APPLICATION_NDJSON_VALUE])
-    fun chat(request: ChatRequest): Flow<ChatResponsePart>
+    fun chat(request: ChatRequest): Publisher<ChatResponsePart>
 
     /**
      * 嵌入功能方法

llmx-impl/llmx-impl-bailian/src/main/kotlin/org/jcnc/llmx/impl/baiLian/controller/BaiLianProvider.kt

@@ -1,16 +1,19 @@
 package org.jcnc.llmx.impl.baiLian.controller
 
-import kotlinx.coroutines.flow.Flow
+
+import kotlinx.coroutines.reactive.asPublisher
 import org.jcnc.llmx.core.spi.entities.request.ChatRequest
 import org.jcnc.llmx.core.spi.entities.request.EmbeddingRequest
 import org.jcnc.llmx.core.spi.entities.response.ChatResponsePart
 import org.jcnc.llmx.core.spi.entities.response.EmbeddingResponse
 import org.jcnc.llmx.core.spi.provider.LLMProvider
 import org.jcnc.llmx.impl.baiLian.service.BaiLianModelService
+import org.reactivestreams.Publisher
 
 import org.springframework.web.bind.annotation.RequestBody
 import org.springframework.web.bind.annotation.RestController
 
+
 /**
  *百炼提供商
  *
@@ -18,10 +21,9 @@ import org.springframework.web.bind.annotation.RestController
  * @author gewuyou
  */
 @RestController
-//@RequestMapping("/provider")
 class BaiLianProvider(
     private val baiLianModelService: BaiLianModelService
-): LLMProvider {
+) : LLMProvider {
     /**
      * 初始化与聊天服务的连接，以处理聊天请求
      *
@@ -31,9 +33,8 @@ class BaiLianProvider(
      * @param request 聊天请求对象，包含建立聊天所需的信息，如用户标识、会话标识等
      * @return 返回一个Flow流，通过该流可以接收到聊天响应的部分数据，如消息、状态更新等
      */
-//    @PostMapping("/chat")
+    override fun chat(@RequestBody request: ChatRequest): Publisher<ChatResponsePart> {
-    override fun chat(@RequestBody request: ChatRequest): Flow<ChatResponsePart> {
+        return baiLianModelService.streamChat(request).asPublisher()
-        return baiLianModelService.streamChat(request)
     }
 
     /**