fix: 修复奔图驱动下载失败问题

- 奔图官网有CDN防盗链，wget直接下载返回403错误页面
- 更换为GitHub社区镜像下载地址
- 添加下载文件有效性验证（检查是否为真正的zip文件）
- 添加备用下载链接自动重试机制
- 明确提示ARM架构不支持奔图官方驱动
- 更新手动下载提示链接

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

setup_cups.sh

@@ -507,19 +507,21 @@ install_pantum_driver() {
     local arch=$(dpkg --print-architecture)
     info "检测到系统架构: $arch"
 
-    # 奔图驱动下载地址 (通用Linux驱动)
-    local pantum_url=""
-    local pantum_file=""
+    # 奔图驱动下载地址 (GitHub镜像，官网有防盗链限制)
+    # 官网链接无法直接wget下载，使用社区镜像
+    local pantum_url="https://github.com/ArticExploit/pantum-driver/releases/download/1.1.123/Pantum.Ubuntu.Driver.V1_1_123.zip"
+    local pantum_backup_url="https://raw.githubusercontent.com/ArticExploit/pantum-driver/main/Pantum.Ubuntu.Driver.V1_1_123.zip"
 
+    # 检查架构是否支持 (奔图官方驱动仅支持x86架构)
     case $arch in
-        arm64|aarch64)
-            pantum_url="https://drivers.pantum.com/userfiles/files/download/drive/Pantum%20Ubuntu%20Driver%20V1_1_123_1.zip"
+        amd64|x86_64|i386)
+            # x86架构支持
             ;;
-        armhf|arm)
-            pantum_url="https://drivers.pantum.com/userfiles/files/download/drive/Pantum%20Ubuntu%20Driver%20V1_1_123_1.zip"
-            ;;
-        amd64|x86_64)
-            pantum_url="https://drivers.pantum.com/userfiles/files/download/drive/Pantum%20Ubuntu%20Driver%20V1_1_123_1.zip"
+        arm64|aarch64|armhf|arm)
+            warn "奔图官方驱动不支持ARM架构 ($arch)"
+            warn "ARM设备可尝试使用通用驱动或IPP Everywhere协议"
+            warn "如果打印机支持网络打印，可尝试使用driverless方式添加"
+            return 1
             ;;
         *)
             warn "不支持的架构: $arch，跳过奔图驱动安装"
@@ -532,11 +534,34 @@ install_pantum_driver() {
     cd "$tmp_dir"
 
     info "下载奔图驱动..."
-    if ! wget -q --show-progress -O pantum_driver.zip "$pantum_url"; then
+    local download_success=false
+
+    # 尝试主下载链接
+    if wget -q --show-progress -O pantum_driver.zip "$pantum_url" 2>/dev/null; then
+        # 验证下载的文件是否为有效zip
+        if file pantum_driver.zip | grep -q "Zip archive"; then
+            download_success=true
+        else
+            warn "主链接下载的文件无效，尝试备用链接..."
+            rm -f pantum_driver.zip
+        fi
+    fi
+
+    # 尝试备用链接
+    if [ "$download_success" = false ] && [ -n "$pantum_backup_url" ]; then
+        info "尝试备用下载链接..."
+        if wget -q --show-progress -O pantum_driver.zip "$pantum_backup_url" 2>/dev/null; then
+            if file pantum_driver.zip | grep -q "Zip archive"; then
+                download_success=true
+            fi
+        fi
+    fi
+
+    if [ "$download_success" = false ]; then
         warn "下载奔图驱动失败，尝试备用方案..."
         # 备用: 直接安装依赖，用户手动下载驱动
         apt install -y libcups2 libcupsimage2
-        warn "请手动从 https://www.pantum.com 下载驱动并安装"
+        warn "请手动从 https://global.pantum.com/support/download/driver/ 下载驱动并安装"
         cd - > /dev/null
         rm -rf "$tmp_dir"
         return 1
@@ -566,7 +591,7 @@ install_pantum_driver() {
         success "奔图驱动安装完成"
     else
         warn "未找到适合的驱动包"
-        warn "请手动从 https://www.pantum.com 下载驱动"
+        warn "请手动从 https://global.pantum.com/support/download/driver/ 下载驱动"
     fi
 
     # 清理