完善客户端功能并同步差距文档

build.sh

@@ -5,6 +5,7 @@ cd "$(dirname "$0")"
 
 CONFIG="${1:-Debug}"          # Debug | Release
 JOBS="${JOBS:-$(sysctl -n hw.ncpu)}"
+MAC_ARCHES="${MT_MAC_ARCHES:-$(uname -m)}"  # arm64, x86_64, or universal
 
 # godot-cpp + the vendored deps (zstd, libsodium-cmake and its nested libsodium)
 # are submodules — recurse. miniLZO is vendored in-tree, nothing to fetch.
@@ -15,7 +16,10 @@ if [ ! -f extension/godot-cpp/CMakeLists.txt ] \
 	git submodule update --init --recursive
 fi
 
-cmake -S . -B build -DCMAKE_BUILD_TYPE="$CONFIG"
+if [ "$MAC_ARCHES" = universal ]; then
+	MAC_ARCHES="arm64;x86_64"
+fi
+cmake -S . -B build -DCMAKE_BUILD_TYPE="$CONFIG" -DCMAKE_OSX_ARCHITECTURES="$MAC_ARCHES"
 cmake --build build --config "$CONFIG" -j "$JOBS"
 
 echo