修复无法正常登录的问题

server/index.js

@@ -582,25 +582,28 @@ app.get('/api/metrics/overview', async (req, res) => {
 
     // --- Add Geo Information to Servers ---
     const geoServers = await Promise.all(overview.servers.map(async (server) => {
-      // The original IP is masked in the response from prometheusService.getOverviewMetrics
-      // But we can get it back from serverIdMap in prometheusService if we are on the same process
-      // Actually, prometheusService needs to provide a way to get the real IP back.
-      // Or we can just modify getOverviewMetrics to return the real IP for internal use.
-      
-      // Let's look at prometheusService.js's getServerIdMap logic
       const realInstance = prometheusService.resolveToken(server.instance);
       const cleanIp = realInstance.split(':')[0];
       
-      // Attempt to get location
-      const location = await geoService.getLocation(cleanIp);
-      if (location) {
-        return {
-          ...server,
-          country: location.country,
-          countryName: location.country_name,
-          lat: location.latitude,
-          lng: location.longitude
-        };
+      // Try to get from DB cache only (fast)
+      try {
+        const [rows] = await db.query('SELECT * FROM server_locations WHERE ip = ?', [cleanIp]);
+        if (rows.length > 0) {
+          const location = rows[0];
+          return {
+            ...server,
+            country: location.country,
+            countryName: location.country_name,
+            city: location.city,
+            lat: location.latitude,
+            lng: location.longitude
+          };
+        } else {
+          // Trigger background resolution for future requests
+          geoService.getLocation(cleanIp).catch(() => {});
+        }
+      } catch (e) {
+        // DB error, skip geo for now
       }
       return server;
     }));