feat: read and write server tags, resolve targets from the database

server/cmd/main.go

@@ -112,6 +112,10 @@ func runSchemaSetup() {
 		log.Printf("warning: failed to ensure secret indexes: %v", err)
 	}
 
+	if err := services.EnsureServerIndexes(); err != nil {
+		log.Printf("warning: failed to ensure server indexes: %v", err)
+	}
+
 	if err := services.EnsureSettingsIndexes(); err != nil {
 		log.Fatalf("failed to ensure settings indexes: %v", err)
 	}