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

internal/web/migration_test.go

@@ -0,0 +1,18 @@
+package web
+
+import (
+	"ananta-ps/internal/config"
+	"testing"
+)
+
+func TestAdminHonorsConfiguredHost(t *testing.T) {
+	cfg := &config.Config{Network: config.NetworkConfig{BindHost: "0.0.0.0"}, Admin: config.AdminConfig{Enabled: true, Host: "127.0.0.1"}}
+	a := NewAdmin(cfg, nil)
+	if err := a.Start(); err != nil {
+		t.Fatal(err)
+	}
+	defer a.Stop()
+	if a.httpSrv.Addr != "127.0.0.1:0" {
+		t.Fatalf("admin bind ignored: %s", a.httpSrv.Addr)
+	}
+}