修复地区查询错误的BUG

server/index.js

@@ -617,22 +617,17 @@ app.get('/api/metrics/overview', async (req, res) => {
 
     // --- Add Geo Information to Servers ---
     const geoServers = await Promise.all(overview.servers.map(async (server) => {
-      const realInstance = prometheusService.resolveToken(server.instance);
+      // Use originalInstance if available for correct location lookup
+      const realInstance = server.originalInstance || prometheusService.resolveToken(server.instance);
       const cleanIp = realInstance.split(':')[0];
       
+      let geoData = null;
+      
       // 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];
+          geoData = 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(() => {});
@@ -640,7 +635,21 @@ app.get('/api/metrics/overview', async (req, res) => {
       } catch (e) {
         // DB error, skip geo for now
       }
-      return server;
+
+      // Prepare the server object without sensitive originalInstance
+      const { originalInstance, ...safeServer } = server;
+      
+      if (geoData) {
+        return {
+          ...safeServer,
+          country: geoData.country,
+          countryName: geoData.country_name,
+          city: geoData.city,
+          lat: geoData.latitude,
+          lng: geoData.longitude
+        };
+      }
+      return safeServer;
     }));
 
     overview.servers = geoServers;

server/prometheus-service.js

@@ -10,7 +10,7 @@ const httpAgent = new http.Agent({ keepAlive: true });
 const httpsAgent = new https.Agent({ keepAlive: true, rejectUnauthorized: false });
 
 const serverIdMap = new Map(); // token -> { instance, job, source }
-const SECRET = crypto.randomBytes(16).toString('hex');
+const SECRET = process.env.APP_SECRET || 'prom-data-panel-stable-secret-key-123';
 
 function getServerToken(instance, job, source) {
   const hash = crypto.createHmac('sha256', SECRET)
@@ -363,10 +363,7 @@ async function getOverviewMetrics(url, sourceName) {
       tx: totalTraffic24hTx,
       total: totalTraffic24hRx + totalTraffic24hTx
     },
-    servers: allInstancesList.map(s => {
+    servers: allInstancesList
-      const { originalInstance, ...rest } = s;
-      return rest;
-    })
   };
 }