Fix VT102 support

It turns out \e[39m wasn't introduced until ECMA-48 3rd c. 1984.

Author: jart

llamafile/chatbot_repl.cpp

@@ -144,7 +144,7 @@ void repl() {
         bestlineSetCompletionCallback(on_completion);
         write(1, get_role_color(g_role), strlen(get_role_color(g_role)));
         char *line = bestlineWithHistory(">>> ", "llamafile");
-        write(1, UNFOREGROUND, strlen(UNFOREGROUND));
+        write(1, RESET, strlen(RESET));
         g_last_printed_char = '\n';
         if (!line) {
             if (g_got_sigint)

llamafile/server/v1_chat_completions.cpp

@@ -287,6 +287,8 @@ Client::get_v1_chat_completions_params(V1ChatCompletionParams* params)
         if (!top_p.isNumber())
             return send_error(400, "top_p must be number");
         params->top_p = top_p.getNumber();
+        if (!(0 <= params->top_p && params->top_p <= 1))
+            return send_error(400, "top_p must be between 0 and 1");
     }
 
     // temperature: number|null

llamafile/server/v1_completions.cpp

@@ -280,6 +280,8 @@ Client::get_v1_completions_params(V1CompletionParams* params)
         if (!top_p.isNumber())
             return send_error(400, "top_p must be number");
         params->top_p = top_p.getNumber();
+        if (!(0 <= params->top_p && params->top_p <= 1))
+            return send_error(400, "top_p must be between 0 and 1");
     }
 
     // temperature: number|null