fix: model selector works now

lib/bds/desktop/shell_live/chat_editor/message_build.ex

@@ -15,12 +15,14 @@ defmodule BDS.Desktop.ShellLive.ChatEditor.MessageBuild do
       %ChatConversation{} = conversation ->
         messages = AI.list_chat_messages(conversation.id)
         request = Map.get(assigns.chat_editor_requests, conversation.id)
-        available_models = AI.available_chat_models(conversation.model)
+        effective_model = AI.effective_chat_model(conversation)
+        available_models = AI.available_chat_models(effective_model)
 
         %{
           id: conversation.id,
           title: conversation.title || translated("chat.newChat"),
           model: conversation.model,
+          effective_model: effective_model,
           available_models: available_models,
           available_model_groups: ModelSelection.group_available_models(available_models),
           model_selector_open?:

lib/bds/desktop/shell_live/chat_editor_html/chat_editor.html.heex

@@ -17,7 +17,7 @@
             phx-click="toggle_chat_model_selector"
             data-testid="chat-model-selector-button"
           >
-            <span><%= @chat_editor.model || translated("chat.newChat") %></span>
+            <span><%= @chat_editor.effective_model || translated("chat.modelUnavailable") %></span>
             <span class="chat-model-selector-caret">▾</span>
           </button>
 
@@ -33,7 +33,7 @@
                     <button
                       class={[
                         "chat-model-selector-option",
-                        if(model.id == @chat_editor.model, do: "active")
+                        if(model.id == @chat_editor.effective_model, do: "active")
                       ]}
                       type="button"
                       phx-click="select_chat_model"