fix(client): iOS Release 配置改手动签名，修复 CI archive 自动签名失败

archive 阶段原走 Automatic 签名，会去申请 Development profile 并失败
（Failed Registering Bundle Identifier / No profiles found）。改为 Manual
并指定 Team BYL4KQHMTN + Apple Distribution 证书 + Jiu App Store profile，
与 compile-ios.sh 的 app-store ExportOptions 一致。仅改 Release，
Debug 保持 Automatic，不影响本地开发。本机已用真实证书验证签名 IPA 构建成功。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

client/ios/Runner.xcodeproj/project.pbxproj

@@ -697,6 +697,10 @@
 				);
 				PRODUCT_BUNDLE_IDENTIFIER = com.yanmei.jiu;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				CODE_SIGN_STYLE = Manual;
+				DEVELOPMENT_TEAM = BYL4KQHMTN;
+				PROVISIONING_PROFILE_SPECIFIER = "Jiu App Store";
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "Apple Distribution";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";