fix(build): stop build-ios.sh from clobbering the macOS Xcode project

The iOS packaging script wrote project.yml into the repo root with
`name: MiniPlayer` and ran xcodegen there, regenerating
MiniPlayer.xcodeproj as an iOS-only project and destroying the macOS
target.

Generate into an isolated dir (.build-ios/xcodegen) under a distinct
project name (MiniPlayerIOS), reference packages/sources by absolute
path so they resolve from the nested location, and archive that
project instead. The macOS project is never touched.

Also wire Assets.xcassets into the iOS target for the app icon.

scripts/build-ios.sh

@@ -7,6 +7,7 @@ set -e
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 PROJECT_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
+PARENT_DIR="$(cd "$PROJECT_DIR/.." && pwd)"
 APP_NAME="MiniPlayer"
 VERSION=$(date +%Y.%m.%d)
 BUILD_DIR="$PROJECT_DIR/.build-ios"
@@ -25,10 +26,14 @@ echo "Team ID: $TEAM_ID"
 # 1. 生成 Xcode 项目
 echo ""
 echo "--- Step 1: 生成 Xcode 项目 ---"
-cd "$PROJECT_DIR"
 
-cat > project.yml << EOF
-name: MiniPlayer
+# 关键：iOS 工程生成到一个独立目录 + 独立工程名，
+# 绝不在仓库根目录运行 xcodegen —— 否则会以 name: MiniPlayer
+# 覆盖 macOS 的 MiniPlayer.xcodeproj，破坏 macOS target。
+IOS_GEN_DIR="$BUILD_DIR/xcodegen"
+mkdir -p "$IOS_GEN_DIR"
+cat > "$IOS_GEN_DIR/project.yml" << EOF
+name: MiniPlayerIOS
 options:
   bundleIdPrefix: com.miniplayer
   deploymentTarget:
@@ -38,18 +43,20 @@ options:
 
 packages:
   SwiftBricks:
-    path: ../swiftbricks
+    path: $PARENT_DIR/swiftbricks
   StreamRecorder:
-    path: ../StreamRecorder
+    path: $PARENT_DIR/StreamRecorder
 
 targets:
-  MiniPlayer:
+  MiniPlayerIOS:
     type: application
     platform: iOS
     sources:
-      - path: Sources
+      - path: $PROJECT_DIR/Sources
         excludes:
           - "**/PlayerRecorder.swift"
+      - path: $PROJECT_DIR/Assets.xcassets
+        buildPhase: resources
     dependencies:
       - package: SwiftBricks
       - package: StreamRecorder
@@ -71,25 +78,25 @@ targets:
         GENERATE_INFOPLIST_FILE: YES
         ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
     resources:
-      - path: Sources/Resources
+      - path: $PROJECT_DIR/Sources/Resources
 EOF
 
 if command -v xcodegen &> /dev/null; then
-    xcodegen generate
-    echo "  ✓ Xcode 项目生成成功"
+    (cd "$IOS_GEN_DIR" && xcodegen generate)
+    echo "  ✓ Xcode 项目生成成功: $IOS_GEN_DIR/MiniPlayerIOS.xcodeproj"
 else
     echo "  ⚠ xcodegen 未安装，使用 xcodebuild + SPM 模式"
-    rm -f project.yml
+    rm -f "$IOS_GEN_DIR/project.yml"
 fi
 
 # 2. Archive
 echo ""
 echo "--- Step 2: Archive ---"
 
-if [ -f "$PROJECT_DIR/MiniPlayer.xcodeproj/project.pbxproj" ]; then
-    # 使用 xcodegen 生成的项目
-    SCHEME="MiniPlayer"
-    PROJECT_FLAG="-project $PROJECT_DIR/MiniPlayer.xcodeproj"
+if [ -f "$IOS_GEN_DIR/MiniPlayerIOS.xcodeproj/project.pbxproj" ]; then
+    # 使用独立目录里生成的 iOS 工程（不会触碰 macOS 工程）
+    SCHEME="MiniPlayerIOS"
+    PROJECT_FLAG="-project $IOS_GEN_DIR/MiniPlayerIOS.xcodeproj"
 else
     # 使用 SPM 自动生成的项目
     SCHEME="MiniPlayeriOS"
@@ -172,5 +179,5 @@ else
     echo "  提示: 检查签名配置和 ExportOptions.plist"
 fi
 
-# 清理临时文件
-rm -f "$PROJECT_DIR/project.yml"
+# 清理临时文件（只清理独立生成目录，不触碰仓库根目录）
+rm -f "$IOS_GEN_DIR/project.yml"