修复模拟器链接问题：只在真机上链接UnityFramework

UnityFramework.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'UnityFramework'
-  s.version          = '1.0.3'
+  s.version          = '1.0.4'
   s.summary          = 'Unity iOS Framework for Flutter integration'
   s.description      = 'Unity iOS framework packaged as CocoaPod for Flutter projects.'
   s.homepage         = 'https://gitea.sdws.shop/xim/flutter_unity_pod'
@@ -13,13 +13,9 @@ Pod::Spec.new do |s|
   # iOS 13 起
   s.platform     = :ios, '13.0'
 
-  # UnityFramework.framework（注意路径包含 UnityLibrary）
-  s.vendored_frameworks = 'UnityLibrary/UnityFramework.xcframework'
-
-  # 保留所有符号
-  s.preserve_paths = [
-    'UnityLibrary/UnityFramework.xcframework'
-  ]
+  # UnityFramework.framework（仅真机）
+  s.vendored_frameworks = 'UnityLibrary/UnityFramework.framework'
+  s.preserve_paths = 'UnityLibrary/UnityFramework.framework'
 
   # 链接依赖
   s.frameworks = [
@@ -37,11 +33,12 @@ Pod::Spec.new do |s|
     'ENABLE_BITCODE' => 'NO'
   }
 
-  # 配置弱链接，让UnityFramework变成可选的
-  # 这样在不支持的架构（如模拟器）上，App也能正常启动
-  # 只在实际调用Unity功能时才检查framework是否可用
+  # 弱链接配置：只在真机上链接UnityFramework，模拟器完全不链接
   s.user_target_xcconfig = {
-    'OTHER_LDFLAGS' => '$(inherited) -weak_framework UnityFramework'
+    'OTHER_LDFLAGS[sdk=iphoneos*]' => '$(inherited) -weak_framework UnityFramework',
+    'OTHER_LDFLAGS[sdk=iphonesimulator*]' => '$(inherited)',
+    # 模拟器上不搜索UnityFramework
+    'FRAMEWORK_SEARCH_PATHS[sdk=iphonesimulator*]' => '$(inherited)'
   }
 
   # 仅支持真机：