Support Linux refactoring checks

src/app/generation.rs

@@ -293,7 +293,7 @@ fn sync_a2ui_message(
     renderable_surface_updated
 }
 
-#[cfg(target_os = "macos")]
+#[cfg(any(target_os = "macos", test))]
 fn chat_turn(message: &ChatMessage) -> ChatTurn {
     ChatTurn {
         user: message.user,
@@ -368,7 +368,7 @@ fn project_agents(path: &Path) -> Result<Option<String>, String> {
     }
 }
 
-#[cfg(target_os = "macos")]
+#[cfg(any(target_os = "macos", test))]
 fn title_context(messages: impl IntoIterator<Item = ChatTurn>) -> Vec<ChatTurn> {
     let mut started = false;
     messages
@@ -497,6 +497,8 @@ impl App {
         #[cfg(target_os = "macos")]
         let agents =
             agents_prompt_for_turn(opening_turn, opening_agents, self.session_agents_prompt());
+        #[cfg(not(target_os = "macos"))]
+        let agents = None::<String>;
         self.a2ui_auto_switch_pending = true;
         self.context_notice = None;
         #[cfg(target_os = "macos")]
@@ -535,6 +537,7 @@ impl App {
             &effective.turn.system_prompt,
             self.compaction_summary(),
         );
+        #[cfg(target_os = "macos")]
         let assistant_reasoning = effective.turn.reasoning_mode != ReasoningMode::Direct;
         #[cfg(target_os = "macos")]
         let model_prompt = if self.config.a2ui_enabled {
@@ -700,7 +703,6 @@ impl App {
         {
             let _ = effective;
             self.error = Some("Local Metal generation requires macOS.".into());
-            return;
         }
     }
 

src/app/preferences.rs

@@ -1,4 +1,5 @@
 use super::*;
+use std::sync::RwLock;
 
 #[derive(Clone)]
 pub(super) struct PreferenceDraft {
@@ -437,6 +438,7 @@ impl App {
                 return;
             }
         }
+        #[cfg(target_os = "macos")]
         let dev_brain_changed = self.config.dev_brain != config.dev_brain;
         #[cfg(target_os = "macos")]
         let endpoint_changed = self.config.endpoint != config.endpoint;
@@ -447,6 +449,7 @@ impl App {
         {
             self._endpoint = None;
         }
+        #[cfg(target_os = "macos")]
         let pending_endpoint =
             if config.endpoint.enabled && (endpoint_changed || self._endpoint.is_none()) {
                 let Some(generation) = &self.generation_service else {