fix(highlight): allow override (#201)

update envvar parsing from cmdline

Signed-off-by: Aaron Pham <contact@aarnphm.xyz>

lua/avante/llm.lua

@@ -96,6 +96,8 @@ M.stream = function(question, code_lang, code_content, selected_content_content,
   ---@type AvanteCurlOutput
   local spec = Provider.parse_curl_args(Provider, code_opts)
 
+  Utils.debug({ spec })
+
   ---@param line string
   local function parse_stream_data(line)
     local event = line:match("^event: (.+)$")