update pay function

src/views/AgentChat/components/ChatArea/MessageRenderer.js

@@ -120,19 +120,21 @@ const MessageRenderer = ({ message, userAvatar }) => {
 
     case MessageTypes.AGENT_RESPONSE:
       return (
-        <Flex justify="flex-start">
-          <HStack align="start" spacing={3} maxW="75%">
+        <Flex justify="flex-start" w="100%">
+          <HStack align="start" spacing={3} maxW={{ base: '95%', md: '85%', lg: '80%' }} w="100%">
             <Avatar
               src="/images/agent/基金经理.png"
               icon={<Cpu className="w-4 h-4" />}
               size="sm"
               bgGradient="linear(to-br, purple.500, pink.500)"
               boxShadow="0 0 12px rgba(236, 72, 153, 0.4)"
+              flexShrink={0}
             />
             <motion.div
               initial={{ opacity: 0, x: -20 }}
               animate={{ opacity: 1, x: 0 }}
               transition={{ type: 'spring', stiffness: 300, damping: 30 }}
+              style={{ flex: 1, minWidth: 0 }}
             >
               <Card
                 bg="rgba(255, 255, 255, 0.05)"
@@ -140,12 +142,15 @@ const MessageRenderer = ({ message, userAvatar }) => {
                 border="1px solid"
                 borderColor="rgba(255, 255, 255, 0.1)"
                 boxShadow="0 8px 32px 0 rgba(31, 38, 135, 0.37)"
+                w="100%"
               >
                 <CardBody px={5} py={3}>
                   <Box
                     fontSize="sm"
                     color="gray.100"
                     lineHeight="relaxed"
+                    w="100%"
+                    overflow="hidden"
                     sx={{
                       '& p': { mb: 2 },
                       '& h1, & h2, & h3': { color: 'gray.50' },

src/views/AgentChat/hooks/useAgentSessions.ts

@@ -108,6 +108,23 @@ export const useAgentSessions = ({
     }
   }, [user?.id]);
 
+  /**
+   * 安全解析 JSON 字符串，如果已经是对象则直接返回
+   */
+  const safeJsonParse = (value: unknown): unknown => {
+    if (!value) return null;
+    if (typeof value === 'object') return value;
+    if (typeof value === 'string') {
+      try {
+        return JSON.parse(value);
+      } catch {
+        console.warn('JSON 解析失败:', value?.toString().substring(0, 100));
+        return null;
+      }
+    }
+    return null;
+  };
+
   /**
    * 加载指定会话的历史消息
    */
@@ -125,9 +142,9 @@ export const useAgentSessions = ({
           const formattedMessages: Message[] = history.map((msg: any, idx: number) => ({
             id: `${sessionId}-${idx}`,
             type: msg.message_type === 'user' ? MessageTypes.USER : MessageTypes.AGENT_RESPONSE,
-            content: msg.message,
-            plan: msg.plan ? JSON.parse(msg.plan) : null,
-            stepResults: msg.steps ? JSON.parse(msg.steps) : null,
+            content: msg.message || '',
+            plan: safeJsonParse(msg.plan),
+            stepResults: safeJsonParse(msg.steps),
             timestamp: msg.timestamp,
           }));