fix(actions): enhance macOS build workflow with additional app existence checks and error messaging

.gitea/workflows/test-macos-build.yml

@@ -78,6 +78,18 @@ jobs:
             # Set CI environment variable explicitly before running
             export CI=true
             ./scripts/mac_build.sh
+            
+            # Check if the build succeeded by looking for the app
+            APP_PATHS=$(find ./Builds -type d -name "*.app" 2>/dev/null || echo "")
+            if [ -z "$APP_PATHS" ]; then
+              APP_PATHS=$(find ./Saved/StagedBuilds -type d -name "*.app" 2>/dev/null || echo "")
+            fi
+            
+            if [ -z "$APP_PATHS" ]; then
+              echo "❌ ERROR: Build command appeared to succeed but no app bundle was found!"
+              echo "This usually means the build failed but didn't properly return an error code."
+              exit 1
+            fi
           else
             echo "ERROR: Build script not found at ./scripts/mac_build.sh"
             exit 1

Source/LuckyWorldEditor.Target.cs

@@ -9,6 +9,7 @@ public class LuckyWorldEditorTarget : TargetRules
 	{
 		Type = TargetType.Editor;
 		DefaultBuildSettings = BuildSettingsVersion.V5;
+		bOverrideBuildEnvironment = true;
 
 		ExtraModuleNames.AddRange( new string[] { "LuckyWorld" } );
 

scripts/mac_build.sh

@@ -76,6 +76,16 @@ echo "🦾 Build completed. Application path:"
 APP_PATH=$(find "$ARCHIVE_DIR" -name "*.app" -type d | head -n 1)
 echo "$APP_PATH"
 
+# Check if the build actually succeeded by verifying the app exists
+if [ -z "$APP_PATH" ] || [ ! -d "$APP_PATH" ]; then
+  echo "❌ ERROR: Build failed or did not produce an app bundle!"
+  echo "Check the logs above for build errors."
+  echo "Common issues:"
+  echo "  - 'Targets with a unique build environment cannot be built with an installed engine'"
+  echo "     Fix: Use bOverrideBuildEnvironment = true instead of BuildEnvironment = TargetBuildEnvironment.Unique"
+  exit 1
+fi
+
 if [ -n "$APP_PATH" ]; then
   echo ""
   echo "🔍 Binary files that will need signing:"