rm msg.thoughts (that's for later / R1)

Author: ochafik

common/common.h

@@ -623,7 +623,6 @@ struct common_chat_msg {
     std::string role;
     std::string content;
     std::vector<common_tool_call> tool_calls;
-    std::string thoughts = "";
     std::string tool_plan = "";
 };
 

tests/test-chat.cpp

@@ -22,7 +22,6 @@ static common_chat_msg msg_from_json(const json & message) {
         "assistant",
         "",
         {},
-        /* .thoughts = */ "",
         /* .tool_plan = */ "",
     };
     if (message.contains("content") && !message.at("content").is_null()) {