fix: return empty array instead of null when user has no servers

Author: ddrayko

internal/embed/public/js/app.js

@@ -2379,7 +2379,7 @@ async function renderOverview() {
     $('#stat-active').textContent = data.activeServers;
     const limit = data.serverLimit || 3;
     $('#stat-slots').textContent = data.totalServers + '/' + limit;
-    const toRenew = data.servers.filter(s => {
+    const toRenew = (data.servers || []).filter(s => {
       const meta = s.serverMeta;
       if (!meta) return false;
       return new Date(meta.expires_at) <= new Date();

internal/services/pyrodactyl.go

@@ -415,7 +415,7 @@ func GetServersByUser(userID int64) ([]map[string]interface{}, error) {
 		return nil, err
 	}
 
-	var userServers []map[string]interface{}
+	userServers := make([]map[string]interface{}, 0)
 	for _, s := range all {
 		if uid, ok := s["user"].(float64); ok && int64(uid) == userID {
 			enrichServer(s)