feat: change to token calculation again

lua/chatgpt_nvim/config.lua

@@ -87,6 +87,7 @@ function M.load()
       "No config file found (tried .chatgpt_config.yaml, chatgpt_config.yaml). Using defaults.",
       vim.log.levels.WARN
     )
+    config.max_token = 2048
     return config
   end
 
@@ -120,7 +121,7 @@ function M.load()
         if type(result.initial_files) == "table" then
           config.initial_files = result.initial_files
         end
-        if type(result.include_file_contents) == "boolean" then  -- LOAD NEW FLAG
+        if type(result.include_file_contents) == "boolean" then
           config.include_file_contents = result.include_file_contents
         end
         if type(result.preview_changes) == "boolean" then
@@ -153,10 +154,17 @@ function M.load()
             end
           end
         end
+
+        if type(result.max_token) == "number" then
+          config.max_token = result.max_token
+        else
+          config.max_token = 2048
+        end
       end
     end
   else
     config.initial_prompt = "You are a coding assistant who receives a project's context and user instructions..."
+    config.max_token = 2048
   end
 
   -- Merge default prompt blocks