Wire with_remote_overrides to construct model families (#7621)

- This PR wires `with_remote_overrides` and make the
`construct_model_families` an async function
- Moves getting model family a level above to keep the function `sync`
- Updates the tests to local, offline, and `sync` helper for model
families

codex-rs/tui/src/chatwidget.rs

@@ -11,6 +11,7 @@ use codex_core::config::Config;
 use codex_core::config::types::Notifications;
 use codex_core::git_info::current_branch_name;
 use codex_core::git_info::local_git_branches;
+use codex_core::openai_models::model_family::ModelFamily;
 use codex_core::openai_models::models_manager::ModelsManager;
 use codex_core::project_doc::DEFAULT_PROJECT_DOC_FILENAME;
 use codex_core::protocol::AgentMessageDeltaEvent;
@@ -261,6 +262,7 @@ pub(crate) struct ChatWidgetInit {
     pub(crate) feedback: codex_feedback::CodexFeedback,
     pub(crate) skills: Option<Vec<SkillMetadata>>,
     pub(crate) is_first_run: bool,
+    pub(crate) model_family: ModelFamily,
 }
 
 #[derive(Default)]
@@ -277,6 +279,7 @@ pub(crate) struct ChatWidget {
     bottom_pane: BottomPane,
     active_cell: Option<Box<dyn HistoryCell>>,
     config: Config,
+    model_family: ModelFamily,
     auth_manager: Arc<AuthManager>,
     models_manager: Arc<ModelsManager>,
     session_header: SessionHeader,
@@ -465,15 +468,13 @@ impl ChatWidget {
     }
 
     fn on_agent_reasoning_final(&mut self) {
+        let reasoning_summary_format = self.get_model_family().reasoning_summary_format;
         // At the end of a reasoning block, record transcript-only content.
         self.full_reasoning_buffer.push_str(&self.reasoning_buffer);
-        let model_family = self
-            .models_manager
-            .construct_model_family(&self.config.model, &self.config);
         if !self.full_reasoning_buffer.is_empty() {
             let cell = history_cell::new_reasoning_summary_block(
                 self.full_reasoning_buffer.clone(),
-                &model_family,
+                reasoning_summary_format,
             );
             self.add_boxed_history(cell);
         }
@@ -647,6 +648,9 @@ impl ChatWidget {
         self.stream_controller = None;
         self.maybe_show_pending_rate_limit_prompt();
     }
+    pub(crate) fn get_model_family(&self) -> ModelFamily {
+        self.model_family.clone()
+    }
 
     fn on_error(&mut self, message: String) {
         self.finalize_turn();
@@ -1249,6 +1253,7 @@ impl ChatWidget {
             feedback,
             skills,
             is_first_run,
+            model_family,
         } = common;
         let mut rng = rand::rng();
         let placeholder = EXAMPLE_PROMPTS[rng.random_range(0..EXAMPLE_PROMPTS.len())].to_string();
@@ -1270,6 +1275,7 @@ impl ChatWidget {
             }),
             active_cell: None,
             config: config.clone(),
+            model_family,
             auth_manager,
             models_manager,
             session_header: SessionHeader::new(config.model),
@@ -1329,6 +1335,7 @@ impl ChatWidget {
             models_manager,
             feedback,
             skills,
+            model_family,
             ..
         } = common;
         let mut rng = rand::rng();
@@ -1353,6 +1360,7 @@ impl ChatWidget {
             }),
             active_cell: None,
             config: config.clone(),
+            model_family,
             auth_manager,
             models_manager,
             session_header: SessionHeader::new(config.model),
@@ -1785,7 +1793,7 @@ impl ChatWidget {
             EventMsg::AgentReasoning(AgentReasoningEvent { .. }) => self.on_agent_reasoning_final(),
             EventMsg::AgentReasoningRawContent(AgentReasoningRawContentEvent { text }) => {
                 self.on_agent_reasoning_delta(text);
-                self.on_agent_reasoning_final()
+                self.on_agent_reasoning_final();
             }
             EventMsg::AgentReasoningSectionBreak(_) => self.on_reasoning_section_break(),
             EventMsg::TaskStarted(_) => self.on_task_started(),
@@ -2843,9 +2851,10 @@ impl ChatWidget {
     }
 
     /// Set the model in the widget's config copy.
-    pub(crate) fn set_model(&mut self, model: &str) {
+    pub(crate) fn set_model(&mut self, model: &str, model_family: ModelFamily) {
         self.session_header.set_model(model);
         self.config.model = model.to_string();
+        self.model_family = model_family;
     }
 
     pub(crate) fn add_info_message(&mut self, message: String, hint: Option<String>) {