refactor(adapters): improve model list ui (#2428)

Co-authored-by: Oli Morris <[email protected]>

Author: olimorris

lua/codecompanion/adapters/http/copilot/get_models.lua

@@ -151,8 +151,11 @@ local function fetch_async(adapter, provided_token)
               billing.multiplier = model.billing.multiplier
             end
 
+            local description = model.name .. (billing.multiplier and (" (" .. billing.multiplier .. "x)") or "")
+
             models[model.id] = {
               billing = billing,
+              description = description,
               endpoint = internal_endpoint,
               formatted_name = model.name,
               limits = limits,

lua/codecompanion/strategies/chat/keymaps/change_adapter.lua

@@ -183,10 +183,7 @@ function M.select_model(chat)
       local display
 
       if type(model) == "table" then
-        display = model.formatted_name or model.id or "Unknown"
-        if model.billing and model.billing.multiplier then
-          display = string.format("%-30s │ %sx", display, model.billing.multiplier)
-        end
+        display = model.description or model.formatted_name or model.id or "Unknown"
       else
         display = model
       end