fix: brownie CLI iOS - pass packageDir to Rock helpers and use .brownie folder as output base

Author: artus9033

apps/RNApp/ios/.gitignore

@@ -1 +1 @@
-out
+.brownie

packages/cli/src/brownfield/commands/packageIos.ts

@@ -40,11 +40,13 @@ export const packageIosCommand = curryOptions(
       throw new Error('iOS Xcode project not found in the configuration.');
     }
 
-    options.buildFolder ??= path.join(
+    const brownieCacheDir = path.join(
       userConfig.project.ios.sourceDir,
-      'build' // default build folder in iOS project layout
+      '.brownie'
     );
 
+    options.buildFolder ??= path.join(brownieCacheDir, 'build');
+
     packageIosAction(
       options,
       {
@@ -55,12 +57,7 @@ export const packageIosCommand = curryOptions(
         // therefore we resolve it manually from RN's package.json using Rock's utils
         reactNativeVersion: getReactNativeVersion(projectRoot),
         usePrebuiltRNCore: 0, // for brownfield, it is required to build RN from source
-        // below: RN CLI config detection in Rock depends on the existence of a Rock config file;
-        // the below is an escape hatch to provide the config manually and escape Rock's config-dependent logic
-        iosConfigOverride: {
-          sourceDir: userConfig.project.ios.sourceDir,
-          xcodeProject: userConfig.project.ios.xcodeProject,
-        },
+        packageDir: path.join(brownieCacheDir, 'package'), // the output directory for artifacts
         skipCache: true, // cache is dependent on existence of Rock config file
       },
       platformConfig