fix(device-center-query): 简化并修正设备站点与通道的处理逻辑

原先的逻辑先按API返回的站点分组通道，再通过通道编码重建站点列表，存在冗余且可能出错。现在改为单次循环直接基于通道编码生成正确的站点，并按站点分组相机和告警通道，同时完善了相关注释说明。

src/pages/vimp/composables/query/use-device-center-query.ts

@@ -48,59 +48,40 @@ export const useDeviceCenterQuery = () => {
 
       const sitesFromApi = await catalogAllDeviceApi({ signal });
 
-      const siteCamerasMapFromApi = new Map<string, VimpChannel[]>();
-      const siteAlarmsMapFromApi = new Map<string, VimpChannel[]>();
-      for (const site of sitesFromApi ?? []) {
-        const channels = await catalogChannelApi(site.code, { signal });
-        if (!channels || channels.length === 0) continue;
-        const cameras: VimpChannel[] = [];
-        const alarms: VimpChannel[] = [];
-        channels.forEach((channel) => {
-          const typeCode = Number(channel.code.substring(11, 14));
-          if (typeCode >= 4 && typeCode <= 6) {
-            cameras.push(channel);
-          } else if ((typeCode >= 101 && typeCode <= 108) || (typeCode >= 810 && typeCode <= 815)) {
-            alarms.push(channel);
-          }
-        });
-        const siteCode = site.code.substring(0, 6);
-        siteCamerasMapFromApi.set(siteCode, cameras);
-        siteAlarmsMapFromApi.set(siteCode, alarms);
-      }
       // 从 /allDevice 接口获取的站点信息并不保证真实性和完整性，
       // 例如有一个站点的编码是 010699 开头，但是其下的通道是 010199 和 010599 开头，
       // 而 010699 是一个不存在的站点编码，所以需要基于通道的编码来确定所有的站点。
       const sites: VimpStation[] = [];
       const siteCamerasMap = new Map<string, VimpChannel[]>();
-      const siteOnlineMap = new Map<string, boolean>();
-      (sitesFromApi ?? []).forEach((site) => siteOnlineMap.set(site.code.substring(0, 6), site.online));
-      const builtSitesSet = new Set<string>();
-      siteCamerasMapFromApi.forEach((cameras, siteCode) => {
-        for (const camera of cameras) {
-          const { code: cameraGbCode } = camera;
-          const cameraSiteCode = cameraGbCode.substring(0, 6);
-          // 聚合同一站点的摄像机
-          if (!siteCamerasMap.has(cameraSiteCode)) {
-            siteCamerasMap.set(cameraSiteCode, []);
+      const siteAlarmsMap = new Map<string, VimpChannel[]>();
+
+      for (const siteFromApi of sitesFromApi ?? []) {
+        const channels = await catalogChannelApi(siteFromApi.code, { signal });
+        if (!channels || channels.length === 0) continue;
+
+        channels.forEach((channel) => {
+          const siteCode = channel.code.substring(0, 6);
+          if (siteCode in codeSites && !sites.some((site) => site.code === siteCode)) {
+            sites.push({
+              code: siteCode,
+              name: codeSites[siteCode]?.name ?? '',
+              online: siteFromApi.online,
+            });
           }
-          siteCamerasMap.get(cameraSiteCode)!.push(camera);
-          // 如果码表中不存在该站点则跳过
-          if (!(cameraSiteCode in codeSites)) continue;
-          // 如果该站点已被添加则跳过
-          if (builtSitesSet.has(cameraSiteCode)) continue;
-          // 添加该站点到站点列表
-          sites.push({
-            code: cameraSiteCode,
-            name: codeSites[cameraSiteCode]?.name ?? '',
-            // 要用 siteCode，而不是 cameraSiteCode，
-            // 因为 siteCode 是 010699，cameraSiteCode 是 010199 和 010599，
-            // 我们要将 010699 的状态分派给 010199 和 010599
-            online: siteOnlineMap.get(siteCode) ?? false,
-          });
-          // 标记该站点已被添加
-          builtSitesSet.add(cameraSiteCode);
-        }
-      });
+          const typeCode = Number(channel.code.substring(11, 14));
+          if (typeCode >= 4 && typeCode <= 6) {
+            if (!siteCamerasMap.has(siteCode)) {
+              siteCamerasMap.set(siteCode, []);
+            }
+            siteCamerasMap.get(siteCode)!.push(channel);
+          } else if ((typeCode >= 101 && typeCode <= 108) || (typeCode >= 810 && typeCode <= 815)) {
+            if (!siteAlarmsMap.has(siteCode)) {
+              siteAlarmsMap.set(siteCode, []);
+            }
+            siteAlarmsMap.get(siteCode)!.push(channel);
+          }
+        });
+      }
 
       cameraStore.buildLineTabPanes({
         sites,