fix(app): preserve persisted theme styles after startup

Module-level style composites could materialize the temporary adaptive theme before persisted settings loaded. Keep Unistyles reads in render and guard against eager module-scope access.

packages/app/src/screens/workspace/workspace-screen.tsx

@@ -3341,7 +3341,7 @@ function WorkspaceScreenContent({
     [t],
   );
 
-  const containerStyle = containerWithWorkspaceBackgroundStyle;
+  const containerStyle = [styles.container, styles.containerWorkspaceBackground];
 
   const menuNewAgentIcon = MENU_NEW_AGENT_ICON;
   const menuNewTerminalIcon = MENU_NEW_TERMINAL_ICON;
@@ -4090,9 +4090,4 @@ const styles = StyleSheet.create((theme) => ({
   },
 }));
 
-const containerWithWorkspaceBackgroundStyle = [
-  styles.container,
-  styles.containerWorkspaceBackground,
-];
-
 const EXPLORER_TOGGLE_KEYS: ShortcutKey[] = ["mod", "E"];