修改ai回复

lib/data/services/deapsound_ai_service.dart

@@ -22,14 +22,25 @@ class DeapsoundAIService implements AiService {
     final client = http.Client();
     final url = Uri.parse('https://www.deapsound.com/ai/funcchat');
 
+    List contextsList = [];
+    String msg = '';
+    for (var i = 0; i < messages.length; i++) {
+      Map item = messages[i];
+      if (i < messages.length - 1) {
+        if (item['role'] == 'user') {
+          contextsList.add(item['content']);
+        }
+      } else {
+        msg = item['content'];
+      }
+    }
+
     final headers = {
       'Content-Type': 'application/json',
       'Authorization': apiKey,
     };
 
-    final requestBody = {
-      "msg": messages.last['content'],
-    };
+    final requestBody = {"contexts": contextsList, "msg": msg};
 
     try {
       final request = http.Request('POST', url)