Update server-chat.cpp

[Kontomoka5932]

I am using:
koboldcpp-1.117.1
gemma-4-26B-A4B
http://localhost:5001/v1/chat/completions

When asking to output ONLY A NUMBER, for example 123, I get an error in the koboldcpp console:
...
Processing Prompt [BATCH] (471 / 471 tokens)
Generating (4 / 1024 tokens)
(EOS token triggered! ID:106)
[23:13:28] CtxLimit:2361/73728, Init:0.08s, Processed:471 in 1.27s (369.99T/s),
Generated:4/1024 in 0.26s (15.44T/s), Total:1.61s
Output: 123
argument of type 'int' is not iterable
...

I think the error is in the server-chat.cpp file at line 53:
{"text", item.at("content")},
The AI suggests replacing it with the following line:
{"text", item.at("content").is_string() ? item.at("content") : item.at("content").dump()},

[LostRuins]

Should be fixed in the latest rolling build, can you try https://github.com/LostRuins/koboldcpp/releases/tag/rolling

[LostRuins]

server-chat.cpp will do nothing, it's not used in koboldcpp