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/agent-stream/view.tsx

@@ -1234,7 +1234,9 @@ function PermissionActionButton({
   onPress,
 }: PermissionActionButtonProps) {
   const handlePress = useCallback(() => onPress(action), [onPress, action]);
-  const optionTextStyle = isPrimary ? optionTextPrimaryStyle : permissionStyles.optionText;
+  const optionTextStyle = isPrimary
+    ? [permissionStyles.optionText, permissionStyles.optionTextPrimary]
+    : permissionStyles.optionText;
   const colorMapping = isPrimary ? primaryColorMapping : mutedColorMapping;
   return (
     <Pressable testID={testID} style={pressableStyle} onPress={handlePress} disabled={isResponding}>
@@ -1622,8 +1624,6 @@ const permissionStyles = StyleSheet.create((theme) => ({
   },
 }));
 
-const optionTextPrimaryStyle = [permissionStyles.optionText, permissionStyles.optionTextPrimary];
-
 interface StreamItemWrapperProps {
   gapBelow: number;
   children: ReactNode;