feat: add more models.

Author: ayamir

lua/core/settings.lua

@@ -231,12 +231,14 @@ settings["use_chat"] = true
 --- @type string[]
 settings["chat_models"] = {
 	-- free models
-	"qwen/qwq-32b:free", -- default
+	"qwen/qwen-2.5-coder-32b-instruct:free", -- default
+	"qwen/qwq-32b:free",
 	"qwen/qwen3-4b:free",
 	"deepseek/deepseek-v3-base:free",
 	"deepseek/deepseek-prover-v2:free",
 	"meta-llama/llama-4-scout:free",
 	-- paid models
+	"openai/codex-mini",
 	"openai/gpt-4o-mini",
 	"google/gemini-2.0-flash-001",
 	"google/gemini-2.5-pro-preview-03-25",