feat: 站点名称/地址支持多值编辑，动态增删

- Sites.vue: 名称和地址改为动态列表 + 增删按钮
- SiteController: updateSite 接受 names[]/urls[] 数组
- SiteServiceImpl: 更新时直接覆盖整个名称/地址列表

par-api/src/main/java/com/par/api/controller/SiteController.java

@@ -8,6 +8,7 @@ import jakarta.servlet.http.HttpServletRequest;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
 import java.util.List;
 import java.util.Map;
 
@@ -47,15 +48,17 @@ public class SiteController {
             @RequestBody Map<String, Object> payload,
             HttpServletRequest request) {
 
-        String name = (String) payload.get("name");
-        String description = (String) payload.get("description");
-        String baseUrl = (String) payload.get("baseUrl");
+        @SuppressWarnings("unchecked")
+        List<String> names = (List<String>) payload.get("names");
+        @SuppressWarnings("unchecked")
+        List<String> urls = (List<String>) payload.get("urls");
         String siteType = (String) payload.get("siteType");
         String status = (String) payload.get("status");
+        String description = (String) payload.get("description");
         Long operatorId = (Long) request.getAttribute("accountId");
 
         try {
-            Site site = siteService.updateSite(siteId, name, description, baseUrl, siteType, status, operatorId);
+            Site site = siteService.updateSite(siteId, names, urls, description, siteType, status, operatorId);
             return ApiResponse.success(siteService.toDTO(site));
         } catch (IllegalArgumentException e) {
             return ApiResponse.error(404, e.getMessage());