fix: 网页端Anthropic Claude对话格式去除system角色，改为assistant角色

Yi.Ai.Vue3/src/composables/chat/useChatSender.ts

@@ -1,12 +1,13 @@
-import { useHookFetch } from 'hook-fetch/vue';
-import { ElMessage } from 'element-plus';
-import { ref, computed } from 'vue';
 import type { AnyObject } from 'typescript-api-pro';
-import { deleteMessages, unifiedSend } from '@/api';
-import { useModelStore } from '@/stores/modules/model';
-import { convertToApiFormat, parseStreamChunk, type UnifiedMessage } from '@/utils/apiFormatConverter';
 import type { BubbleProps } from 'vue-element-plus-x/types/Bubble';
 import type { ThinkingStatus } from 'vue-element-plus-x/types/Thinking';
+import type { UnifiedMessage } from '@/utils/apiFormatConverter';
+import { ElMessage } from 'element-plus';
+import { useHookFetch } from 'hook-fetch/vue';
+import { ref } from 'vue';
+import { unifiedSend } from '@/api';
+import { useModelStore } from '@/stores/modules/model';
+import { convertToApiFormat, parseStreamChunk } from '@/utils/apiFormatConverter';
 
 export type MessageRole = 'ai' | 'user' | 'assistant' | string;
 
@@ -83,7 +84,8 @@ export function useChatSender(options: UseChatSenderOptions) {
       );
 
       const latest = messages[messages.length - 1];
-      if (!latest) return;
+      if (!latest)
+        return;
 
       // 处理 token 使用情况
       if (parsed.usage) {
@@ -99,7 +101,8 @@ export function useChatSender(options: UseChatSenderOptions) {
         latest.thinkingStatus = 'thinking';
         latest.loading = true;
         latest.thinlCollapse = true;
-        if (!latest.reasoning_content) latest.reasoning_content = '';
+        if (!latest.reasoning_content)
+          latest.reasoning_content = '';
         latest.reasoning_content += parsed.reasoning_content;
       }
 
@@ -108,21 +111,26 @@ export function useChatSender(options: UseChatSenderOptions) {
         const thinkStart = parsed.content.includes('<think>');
         const thinkEnd = parsed.content.includes('</think>');
 
-        if (thinkStart) isThinking.value = true;
-        if (thinkEnd) isThinking.value = false;
+        if (thinkStart)
+          isThinking.value = true;
+        if (thinkEnd)
+          isThinking.value = false;
 
         if (isThinking.value) {
           latest.thinkingStatus = 'thinking';
           latest.loading = true;
           latest.thinlCollapse = true;
-          if (!latest.reasoning_content) latest.reasoning_content = '';
+          if (!latest.reasoning_content)
+            latest.reasoning_content = '';
           latest.reasoning_content += parsed.content
             .replace('<think>', '')
             .replace('</think>', '');
-        } else {
+        }
+        else {
           latest.thinkingStatus = 'end';
           latest.loading = false;
-          if (!latest.content) latest.content = '';
+          if (!latest.content)
+            latest.content = '';
           latest.content += parsed.content;
         }
       }
@@ -144,7 +152,8 @@ export function useChatSender(options: UseChatSenderOptions) {
     textFiles: any[],
     onUpdate: (messages: MessageItem[]) => void,
   ): Promise<void> {
-    if (isSending.value) return;
+    if (isSending.value)
+      return;
 
     isSending.value = true;
     currentRequestApiType.value = modelStore.currentModelInfo.modelApiType || 'Completions';
@@ -207,7 +216,8 @@ export function useChatSender(options: UseChatSenderOptions) {
               fileContent += `<FILE_NAME>${fileItem.name}</FILE_NAME>\n`;
               fileContent += `<FILE_CONTENT>\n${fileItem.fileContent}\n</FILE_CONTENT>\n`;
               fileContent += `</ATTACHMENT_FILE>\n`;
-              if (index < textFiles.length - 1) fileContent += '\n';
+              if (index < textFiles.length - 1)
+                fileContent += '\n';
             });
             contentArray.push({ type: 'text', text: fileContent });
           }
@@ -225,7 +235,8 @@ export function useChatSender(options: UseChatSenderOptions) {
           baseMessage.content = contentArray.length > 1 || imageFiles.length > 0 || textFiles.length > 0
             ? contentArray
             : item.content;
-        } else {
+        }
+        else {
           baseMessage.content = (item.role === 'ai' || item.role === 'assistant') && item.content.length > 10000
             ? `${item.content.substring(0, 10000)}...（内容过长，已省略）`
             : item.content;

Yi.Ai.Vue3/src/utils/apiFormatConverter.ts

@@ -127,18 +127,20 @@ export function toResponsesFormat(messages: UnifiedMessage[]): ResponsesMessage[
  * 将统一格式的消息转换为 Anthropic Claude 格式
  */
 export function toClaudeFormat(messages: UnifiedMessage[]): { messages: ClaudeMessage[]; system?: string } {
-  let systemPrompt: string | undefined;
   const claudeMessages: ClaudeMessage[] = [];
 
   for (const msg of messages) {
-    // Claude 的 system 消息需要单独提取
+    // system 消息转换为 assistant 角色放入 messages 数组
+    let role: 'user' | 'assistant';
     if (msg.role === 'system') {
-      msg.role = 'assistant';
-      // systemPrompt = typeof msg.content === 'string' ? msg.content : msg.content.map(c => c.text || '').join('');
-      // continue;
+      role = 'assistant';
+    }
+    else if (msg.role === 'model') {
+      role = 'assistant';
+    }
+    else {
+      role = msg.role as 'user' | 'assistant';
     }
-
-    const role = msg.role === 'model' ? 'assistant' : msg.role;
 
     // 处理内容格式
     let content: string | ClaudeContent[];