fix(go): repair migration wire contracts and runtime lifecycle; document incomplete port

cmd/ananta-server/main.go

@@ -9,11 +9,11 @@ import (
 	"syscall"
 
 	"ananta-ps/internal/config"
-	"ananta-ps/pkg/protocol"
 	"ananta-ps/internal/gameserver"
 	"ananta-ps/internal/gateway"
 	"ananta-ps/internal/logingate"
 	"ananta-ps/internal/web"
+	"ananta-ps/pkg/protocol"
 )
 
 const banner = `
@@ -34,7 +34,9 @@ func main() {
 	fmt.Print(banner)
 
 	cfg, err := config.LoadConfig(*configPath)
-	_ = protocol.LoadMethodCatalog("data/client_data/MethodIds.json")
+	if err := protocol.LoadMethodCatalog("data/client_data/MethodIds.json"); err != nil {
+		log.Printf("[PROTOCOL] Using compiled method catalog: %v", err)
+	}
 	if err != nil {
 		log.Fatalf("[FATAL] Could not load configuration: %v", err)
 	}
@@ -45,7 +47,7 @@ func main() {
 	// 1. Start Gateway (Port 443, 80, 5801)
 	gw := gateway.New(cfg, "", "")
 	if err := gw.Start(); err != nil {
-		log.Printf("[GATEWAY] Error starting gateway: %v", err)
+		log.Fatalf("[GATEWAY] Failed to start gateway: %v", err)
 	}
 	defer gw.Stop()