cleanup: remove Linux scripts, unify core dir, fix Intel Mac bug

- Delete usb-scripts/, Linux-*.sh, setup-linux-usb.sh, migrate.js
- Rename core-mac/core-win → core (with migration shims for existing USBs)
- Fix Mac-Menu.command ARM64 hardcode — now detects Intel/Apple Silicon
- setup.sh: remove Linux branch, Windows download only with --all-platforms
- Update README.md and CLAUDE.md to reflect Mac + Windows only

portable/setup.sh

@@ -9,11 +9,13 @@ set -e
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 APP_DIR="$SCRIPT_DIR/app"
-CORE_DIR="$APP_DIR/core-mac"
+CORE_DIR="$APP_DIR/core"
 RUNTIME_DIR="$APP_DIR/runtime"
 MIRROR="https://registry.npmmirror.com"
 NODE_MIRROR="https://npmmirror.com/mirrors/node"
 NODE_VERSION="v22.14.0"
+ALL_PLATFORMS=false
+[ "$1" = "--all-platforms" ] && ALL_PLATFORMS=true
 
 GREEN='\033[0;32m'
 CYAN='\033[0;36m'
@@ -38,11 +40,8 @@ if [ "$OS" = "Darwin" ]; then
         PLATFORM="darwin-x64"
         NODE_DIR_NAME="node-mac-x64"
     fi
-elif [ "$OS" = "Linux" ]; then
-    PLATFORM="linux-x64"
-    NODE_DIR_NAME="node-linux-x64"
 else
-    echo -e "${RED}请在 Mac 或 Linux 上运行此脚本。Windows 请用 setup.bat${NC}"
+    echo -e "${RED}请在 Mac 上运行此脚本。Windows 请用 setup.bat${NC}"
     exit 1
 fi
 
@@ -71,35 +70,35 @@ else
     fi
 fi
 
-# ---- 1b. Download Node.js for Windows (Cross-platform support) ----
-WIN_NODE_TARGET="$RUNTIME_DIR/node-win-x64"
-if [ -f "$WIN_NODE_TARGET/node.exe" ]; then
-    echo -e "  ${GREEN}✓${NC} Node.js (win-x64) 已存在，跳过下载"
-else
-    echo -e "  ${CYAN}↓${NC} 下载 Node.js $NODE_VERSION (win-x64) - Windows支持..."
-    mkdir -p "$WIN_NODE_TARGET"
-
-    WIN_NODE_URL="$NODE_MIRROR/$NODE_VERSION/node-$NODE_VERSION-win-x64.zip"
-    echo "    $WIN_NODE_URL"
-
-    # Download zip file to temp, extract, then move
-    TMP_ZIP="/tmp/node-win-x64-$$.zip"
-    curl -fSL "$WIN_NODE_URL" -o "$TMP_ZIP"
-
-    # Use unzip if available, otherwise try native tools
-    if command -v unzip >/dev/null 2>&1; then
-        unzip -q "$TMP_ZIP" -d "/tmp/node-win-extract-$$"
-        cp -r "/tmp/node-win-extract-$$"/node-$NODE_VERSION-win-x64/* "$WIN_NODE_TARGET/"
-        rm -rf "/tmp/node-win-extract-$$"
-    else
-        echo -e "    ${RED}✗ unzip not found, skipping Windows runtime${NC}"
-    fi
-    rm -f "$TMP_ZIP"
-
+# ---- 1b. Download Node.js for Windows (only with --all-platforms) ----
+if [ "$ALL_PLATFORMS" = "true" ]; then
+    WIN_NODE_TARGET="$RUNTIME_DIR/node-win-x64"
     if [ -f "$WIN_NODE_TARGET/node.exe" ]; then
-        echo -e "  ${GREEN}✓${NC} Node.js (win-x64) 下载完成"
+        echo -e "  ${GREEN}✓${NC} Node.js (win-x64) 已存在，跳过下载"
     else
-        echo -e "  ${CYAN}⚠${NC}  Windows runtime下载失败 (不影响当前平台使用)"
+        echo -e "  ${CYAN}↓${NC} 下载 Node.js $NODE_VERSION (win-x64) - Windows支持..."
+        mkdir -p "$WIN_NODE_TARGET"
+
+        WIN_NODE_URL="$NODE_MIRROR/$NODE_VERSION/node-$NODE_VERSION-win-x64.zip"
+        echo "    $WIN_NODE_URL"
+
+        TMP_ZIP="/tmp/node-win-x64-$$.zip"
+        curl -fSL "$WIN_NODE_URL" -o "$TMP_ZIP"
+
+        if command -v unzip >/dev/null 2>&1; then
+            unzip -q "$TMP_ZIP" -d "/tmp/node-win-extract-$$"
+            cp -r "/tmp/node-win-extract-$$"/node-$NODE_VERSION-win-x64/* "$WIN_NODE_TARGET/"
+            rm -rf "/tmp/node-win-extract-$$"
+        else
+            echo -e "    ${RED}✗ unzip not found, skipping Windows runtime${NC}"
+        fi
+        rm -f "$TMP_ZIP"
+
+        if [ -f "$WIN_NODE_TARGET/node.exe" ]; then
+            echo -e "  ${GREEN}✓${NC} Node.js (win-x64) 下载完成"
+        else
+            echo -e "  ${CYAN}⚠${NC}  Windows runtime下载失败 (不影响当前平台使用)"
+        fi
     fi
 fi
 
@@ -173,4 +172,6 @@ echo -e "  目录结构:"
 echo -e "    app/core/       ← OpenClaw + 依赖"
 echo -e "    app/runtime/    ← Node.js $NODE_VERSION"
 echo -e "    data/           ← 运行后自动生成"
+echo ""
+echo -e "  ${CYAN}提示: 制作跨平台 U 盘请用 bash setup.sh --all-platforms${NC}"
 echo -e "${GREEN}════════════════════════════════════════${NC}"