Add systemd installer and non-root support

scripts/resolve_subconverter.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+Subconverter_Bin=""
+Subconverter_Ready=false
+
+Subconverter_Dir="${Server_Dir}/tools/subconverter"
+Default_Bin="${Subconverter_Dir}/subconverter"
+
+resolve_subconverter_arch() {
+	local raw_arch="$1"
+	case "$raw_arch" in
+		x86_64|amd64)
+			echo "linux-amd64"
+			;;
+		aarch64|arm64)
+			echo "linux-arm64"
+			;;
+		armv7*|armv7l)
+			echo "linux-armv7"
+			;;
+		*)
+			echo ""
+			;;
+	esac
+}
+
+try_subconverter_bin() {
+	local candidate="$1"
+	if [ -n "$candidate" ] && [ -x "$candidate" ]; then
+		Subconverter_Bin="$candidate"
+		Subconverter_Ready=true
+		return 0
+	fi
+	return 1
+}
+
+if [ -n "$SUBCONVERTER_PATH" ]; then
+	try_subconverter_bin "$SUBCONVERTER_PATH" && return 0
+else
+	try_subconverter_bin "$Default_Bin" && return 0
+fi
+
+Detected_Arch="${CpuArch:-$(uname -m 2>/dev/null)}"
+Resolved_Arch=$(resolve_subconverter_arch "$Detected_Arch")
+
+if [ -n "$Resolved_Arch" ]; then
+	try_subconverter_bin "${Subconverter_Dir}/subconverter-${Resolved_Arch}" && return 0
+	try_subconverter_bin "${Subconverter_Dir}/bin/subconverter-${Resolved_Arch}" && return 0
+	try_subconverter_bin "${Subconverter_Dir}/${Resolved_Arch}/subconverter" && return 0
+fi
+
+if [ "${SUBCONVERTER_AUTO_DOWNLOAD:-false}" = "true" ] && [ -n "$Resolved_Arch" ]; then
+	Download_Template="${SUBCONVERTER_DOWNLOAD_URL_TEMPLATE:-}"
+	if [ -z "$Download_Template" ]; then
+		echo -e "\033[33m[WARN] 未设置 SUBCONVERTER_DOWNLOAD_URL_TEMPLATE，跳过 subconverter 自动下载\033[0m"
+		return 0
+	fi
+
+	Download_Url="${Download_Template//\{arch\}/${Resolved_Arch}}"
+	Download_Archive="${Server_Dir}/temp/subconverter-${Resolved_Arch}.tar.gz"
+	Extract_Dir="${Server_Dir}/temp/subconverter-${Resolved_Arch}"
+	mkdir -p "${Extract_Dir}"
+
+	if command -v curl >/dev/null 2>&1; then
+		curl -L -sS -o "${Download_Archive}" "${Download_Url}"
+	elif command -v wget >/dev/null 2>&1; then
+		wget -q -O "${Download_Archive}" "${Download_Url}"
+	else
+		echo -e "\033[33m[WARN] 未找到 curl 或 wget，无法自动下载 subconverter\033[0m"
+		return 0
+	fi
+
+	if [ -f "${Download_Archive}" ]; then
+		tar -xzf "${Download_Archive}" -C "${Extract_Dir}" 2>/dev/null
+		Downloaded_Bin=$(find "${Extract_Dir}" -maxdepth 3 -type f -name "subconverter" -print -quit)
+		if [ -n "${Downloaded_Bin}" ]; then
+			mv "${Downloaded_Bin}" "${Subconverter_Dir}/subconverter-${Resolved_Arch}"
+			chmod +x "${Subconverter_Dir}/subconverter-${Resolved_Arch}"
+			try_subconverter_bin "${Subconverter_Dir}/subconverter-${Resolved_Arch}" && return 0
+		fi
+	fi
+fi