config: switch to use fine-tuned chat

Author: kahkeng

config.py

@@ -36,41 +36,9 @@
 default_config = dict(
     type="system.System",
     chat=dict(
-        type="chat.basic_agent.BasicAgentChat",
-        tools=[
-            dict(
-                type="tools.index_answer.IndexAnswerTool",
-                _streaming=True,  # if specified, this is lazily constructed in chat to support streaming
-                name="ScrapedSitesIndexAnswer",
-                content_description="general content scraped from web3 sites. It does not know about this app or about widget magic commands for invoking transactions or fetching data about specific things like NFTs or balances.",
-                index=scraped_sites_index,
-                top_k=3,
-                source_key="url",
-            ),
-            dict(
-                type="tools.index_widget.IndexWidgetTool",
-                _streaming=True,  # if specified, this is lazily constructed in chat to support streaming
-                name="WidgetIndexAnswer",
-                index=widget_index,
-                top_k=10,
-            ),
-            dict(
-                type="tools.index_app_info.IndexAppInfoTool",
-                _streaming=True,  # if specified, this is lazily constructed in chat to support streaming
-                name="AppInfoIndexAnswer",
-                index=app_info_index,
-                top_k=3,
-            ),
-            dict(
-                type="tools.index_api_tool.IndexAPITool",
-                _streaming=True,
-                name="IndexAPITool",
-                index=api_docs_index,
-                crypto_tokens_index=crypto_tokens_index,
-                top_k=1,
-                return_direct=True,
-            ),
-        ],
+        type="chat.fine_tuned.FineTunedChat",
+        widget_index=widget_index,
+        top_k=18,
     )
 )