style: Add macros to enable/disable client building features

server/go/cmd/main.go

@@ -752,6 +752,7 @@ func main() {
 	logCfg.Compress = true
 
 	log := logger.New(logCfg)
+	log.Info("====== Copyright (c) 2026 simpleremoter.com. All rights resvered. ======")
 
 	// Track env vars where we fell back to a built-in default. Printed once
 	// at the end of startup so the operator sees what's in effect — vars the
@@ -961,33 +962,30 @@ func main() {
 		}()
 	}
 
-	fmt.Printf("Server started on port(s): %v\n", ports)
+	log.Info("Server started on port(s): %v", ports)
 	if *httpPort != 0 {
-		fmt.Printf("Web UI on http://localhost:%d/\n", *httpPort)
+		log.Info("Web UI on http://localhost:%d/", *httpPort)
 		if usingDefaultWebPass {
-			fmt.Printf("    Default login: admin / %s   (set YAMA_WEB_ADMIN_PASS to override)\n",
-				defaultWebAdminPass)
+			log.Info("Default login: admin / %s (set YAMA_WEB_ADMIN_PASS to override)", defaultWebAdminPass)
 		}
 	}
 	if licenseHTTP != nil {
-		fmt.Printf("License Server on http://%s/license/{sign,heartbeat}\n", licAddr)
+		log.Info("License Server on http://%s/license/{sign,heartbeat}", licAddr)
 	}
 	if len(defaultsUsed) > 0 {
-		fmt.Println()
-		fmt.Println("[!] Using built-in defaults (set the env var to override):")
 		for _, d := range defaultsUsed {
-			fmt.Printf("    %s = %s\n", d.name, d.value)
+			log.Info("[!] Using built-in defaults (set the env var to override): %s = %s", d.name, d.value)
 		}
 	}
-	fmt.Println("Logs are written to: logs/server.log")
-	fmt.Println("Press Ctrl+C to stop...")
+	log.Info("Logs are written to: logs/server.log")
+	log.Info("Press Ctrl+C to stop...")
 
 	// Wait for interrupt signal
 	sigChan := make(chan os.Signal, 1)
 	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
 	<-sigChan
 
-	fmt.Println("\nShutting down...")
+	log.Info("\nShutting down...")
 	// Order matters: drain License Server HTTP first so no handleSign is
 	// mid-flight; THEN close the signer (which may release HTTP keepalives
 	// in RemoteSigner mode, or be a no-op for LocalSigner/NoOp).
@@ -1003,5 +1001,5 @@ func main() {
 	for _, srv := range servers {
 		srv.Stop()
 	}
-	fmt.Println("Server stopped")
+	log.Info("Server stopped")
 }