feat: App has been updated

app.py

@@ -25,6 +25,7 @@ types_and_models = {
     ],
     'deepinfra': [
         ('Llama 8B', 'meta-llama/Meta-Llama-3.1-8B-Instruct'),
+        ('Llama 3B', 'meta-llama/Llama-3.2-3B-Instruct'),
         ('Llama 70B', 'meta-llama/Meta-Llama-3.1-70B-Instruct'),
         ('Llama 405B', 'meta-llama/Meta-Llama-3.1-405B-Instruct'),
         ('Qwen 72B', 'Qwen/Qwen2.5-72B-Instruct'),
@@ -53,12 +54,17 @@ async def chat_with_server(chat_history, api_key, base_url, selected_type, selec
 
     api_url = 'https://api.logicboost.net'  # API URL
 
-    api_messages = []
-    for user_msg, assistant_msg in chat_history:
+    conversation = []
+    for user_msg, assistant_msg in reversed(chat_history):
         if user_msg is not None:
-            api_messages.append({'role': 'user', 'content': user_msg})
-        if assistant_msg is not None and not assistant_msg.startswith("Assistant is thinking"):
-            api_messages.append({'role': 'assistant', 'content': assistant_msg})
+            conversation.append(f"User: {user_msg}")
+        if assistant_msg and not assistant_msg.startswith("Assistant is thinking"):
+            conversation.append(f"Assistant: {assistant_msg}")
+        elif assistant_msg and assistant_msg.startswith("Assistant is thinking"):
+            conversation.append(f"System: {assistant_msg}")
+
+    user_content = "\n".join(conversation)
+    api_messages = [{'role': 'user', 'content': user_content}]
 
     model = custom_model if selected_type in ['custom', 'open_router'] else selected_model