refactor: 合并 macOS 桌面打包流程

将 macOS .app 打包直接并入 desktop-build-mac，减少重复的桌面构建入口。\n\n同时移除未实现或已废弃的 desktop-package-* 命令和独立打包脚本，降低维护成本。

scripts/build/package-macos.sh

@@ -1,68 +0,0 @@
-#!/bin/bash
-
-VERSION="1.0.0"
-APP_NAME="Nex"
-BUNDLE_ID="io.nex.gateway"
-SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
-PROJECT_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
-BUILD_DIR="${PROJECT_ROOT}/build"
-ASSETS_DIR="${PROJECT_ROOT}/assets"
-
-echo "打包 macOS .app..."
-
-mkdir -p "${BUILD_DIR}/${APP_NAME}.app/Contents/MacOS"
-mkdir -p "${BUILD_DIR}/${APP_NAME}.app/Contents/Resources"
-
-if [ -f "${BUILD_DIR}/nex-mac-arm64" ]; then
-    cp "${BUILD_DIR}/nex-mac-arm64" "${BUILD_DIR}/${APP_NAME}.app/Contents/MacOS/nex"
-elif [ -f "${BUILD_DIR}/nex-mac-amd64" ]; then
-    cp "${BUILD_DIR}/nex-mac-amd64" "${BUILD_DIR}/${APP_NAME}.app/Contents/MacOS/nex"
-else
-    echo "错误: 未找到 macOS 二进制文件，请先运行 make desktop-build-mac"
-    exit 1
-fi
-
-if [ -f "${ASSETS_DIR}/AppIcon.icns" ]; then
-    cp "${ASSETS_DIR}/AppIcon.icns" "${BUILD_DIR}/${APP_NAME}.app/Contents/Resources/"
-else
-    echo "警告: 未找到 AppIcon.icns"
-fi
-
-cat > "${BUILD_DIR}/${APP_NAME}.app/Contents/Info.plist" << EOF
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-    <key>CFBundleDevelopmentRegion</key>
-    <string>zh_CN</string>
-    <key>CFBundleExecutable</key>
-    <string>nex</string>
-    <key>CFBundleIconFile</key>
-    <string>AppIcon</string>
-    <key>CFBundleIdentifier</key>
-    <string>${BUNDLE_ID}</string>
-    <key>CFBundleInfoDictionaryVersion</key>
-    <string>6.0</string>
-    <key>CFBundleName</key>
-    <string>${APP_NAME} Gateway</string>
-    <key>CFBundleDisplayName</key>
-    <string>${APP_NAME} Gateway</string>
-    <key>CFBundlePackageType</key>
-    <string>APPL</string>
-    <key>CFBundleShortVersionString</key>
-    <string>${VERSION}</string>
-    <key>CFBundleVersion</key>
-    <string>${VERSION}</string>
-    <key>LSMinimumSystemVersion</key>
-    <string>10.13</string>
-    <key>LSUIElement</key>
-    <true/>
-    <key>NSHighResolutionCapable</key>
-    <true/>
-</dict>
-</plist>
-EOF
-
-chmod +x "${BUILD_DIR}/${APP_NAME}.app/Contents/MacOS/nex"
-
-echo "打包完成: ${BUILD_DIR}/${APP_NAME}.app"