tron driver removed

2026-01-30 15:42:50 +01:00
parent 51f5b0804a
commit bc46eccbe0
25 changed files with 247 additions and 894 deletions
--- a/api/gateway/chain/.air.toml
+++ b/api/gateway/chain/.air.toml
@@ -1,32 +1,46 @@
-# Config file for Air in TOML format
-
-root = "./../.."
+root = "."
+testdata_dir = "testdata"
 tmp_dir = "tmp"

 [build]
-cmd = "go build -o app -ldflags \"-X 'github.com/tech/sendico/gateway/chain/internal/appversion.BuildUser=$(whoami)' -X 'github.com/tech/sendico/gateway/chain/internal/appversion.Version=$APP_V' -X 'github.com/tech/sendico/gateway/chain/internal/appversion.Branch=$BUILD_BRANCH' -X 'github.com/tech/sendico/gateway/chain/internal/appversion.Revision=$GIT_REV' -X 'github.com/tech/sendico/gateway/chain/internal/appversion.BuildDate=$(date)'\""
-bin = "./app"
-full_bin = "./app --debug --config.file=config.yml"
-include_ext = ["go", "yaml", "yml"]
-exclude_dir = ["gateway/chain/tmp", "pkg/.git", "gateway/chain/env"]
-exclude_regex = ["_test\\.go"]
-exclude_unchanged = true
-follow_symlink = true
-log = "air.log"
-delay = 0
-stop_on_error = true
-send_interrupt = true
-kill_delay = 500
-args_bin = []
-
-[log]
-time = false
+  args_bin = []
+  entrypoint = "./tmp/main"
+  cmd = "go build -o ./tmp/main ."
+  delay = 1000
+  exclude_dir = ["assets", "tmp", "vendor", "testdata"]
+  exclude_file = []
+  exclude_regex = ["_test.go", "_templ.go"]
+  exclude_unchanged = false
+  follow_symlink = false
+  full_bin = ""
+  include_dir = []
+  include_ext = ["go", "tpl", "tmpl", "html"]
+  include_file = []
+  kill_delay = "0s"
+  log = "build-errors.log"
+  poll = false
+  poll_interval = 0
+  post_cmd = []
+  pre_cmd = []
+  rerun = false
+  rerun_delay = 500
+  send_interrupt = false
+  stop_on_error = false

 [color]
-main = "magenta"
-watcher = "cyan"
-build = "yellow"
-runner = "green"
+  app = ""
+  build = "yellow"
+  main = "magenta"
+  runner = "green"
+  watcher = "cyan"
+
+[log]
+  main_only = false
+  time = false

 [misc]
-clean_on_exit = true
+  clean_on_exit = false
+
+[screen]
+  clear_on_rebuild = false
+  keep_scroll = true
--- a/api/gateway/chain/.gitignore
+++ b/api/gateway/chain/.gitignore
@@ -1,3 +1,4 @@
 internal/generated
 .gocache
 app
+tmp
--- a/api/gateway/chain/client/client.go
+++ b/api/gateway/chain/client/client.go
@@ -9,6 +9,7 @@ import (

 	chainasset "github.com/tech/sendico/pkg/chain"
 	"github.com/tech/sendico/pkg/merrors"
+	pmodel "github.com/tech/sendico/pkg/model"
 	describablev1 "github.com/tech/sendico/pkg/proto/common/describable/v1"
 	moneyv1 "github.com/tech/sendico/pkg/proto/common/money/v1"
 	paginationv1 "github.com/tech/sendico/pkg/proto/common/pagination/v1"
@@ -18,6 +19,7 @@ import (
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/credentials/insecure"
 	"google.golang.org/protobuf/types/known/structpb"
+	"google.golang.org/protobuf/types/known/wrapperspb"
 )

 const chainConnectorID = "chain"
@@ -149,17 +151,17 @@ func (c *chainGatewayClient) ListManagedWallets(ctx context.Context, req *chainv
 	ctx, cancel := c.callContext(ctx)
 	defer cancel()
 	assetString := ""
-	ownerRef := ""
 	orgRef := ""
 	var page *paginationv1.CursorPageRequest
+	var ownerRefFilter *wrapperspb.StringValue
 	if req != nil {
 		assetString = chainasset.AssetString(req.GetAsset())
-		ownerRef = strings.TrimSpace(req.GetOwnerRef())
 		orgRef = strings.TrimSpace(req.GetOrganizationRef())
+		ownerRefFilter = req.GetOwnerRefFilter()
 		page = req.GetPage()
 	}
 	resp, err := c.client.ListAccounts(ctx, &connectorv1.ListAccountsRequest{
-		OwnerRef:        ownerRef,
+		OwnerRefFilter:  ownerRefFilter,
 		OrganizationRef: orgRef,
 		Kind:            connectorv1.AccountKind_CHAIN_MANAGED_WALLET,
 		Asset:           assetString,
@@ -448,6 +450,7 @@ func operationFromTransfer(req *chainv1.SubmitTransferRequest) (*connectorv1.Ope
 		return nil, err
 	}
 	op.To = to
+	setOperationRolesFromMetadata(op, req.GetMetadata())
 	return op, nil
 }

@@ -465,6 +468,22 @@ func destinationToParty(dest *chainv1.TransferDestination) (*connectorv1.Operati
 	}
 }

+func setOperationRolesFromMetadata(op *connectorv1.Operation, metadata map[string]string) {
+	if op == nil || len(metadata) == 0 {
+		return
+	}
+	if raw := strings.TrimSpace(metadata[pmodel.MetadataKeyFromRole]); raw != "" {
+		if role, ok := pmodel.Parse(raw); ok && role != "" {
+			op.FromRole = pmodel.ToProto(role)
+		}
+	}
+	if raw := strings.TrimSpace(metadata[pmodel.MetadataKeyToRole]); raw != "" {
+		if role, ok := pmodel.Parse(raw); ok && role != "" {
+			op.ToRole = pmodel.ToProto(role)
+		}
+	}
+}
+
 func transferFromReceipt(req *chainv1.SubmitTransferRequest, receipt *connectorv1.OperationReceipt) *chainv1.Transfer {
 	transfer := &chainv1.Transfer{}
 	if req != nil {
--- a/api/gateway/chain/client/client_test.go
+++ b/api/gateway/chain/client/client_test.go
@@ -8,6 +8,7 @@ import (
 	connectorv1 "github.com/tech/sendico/pkg/proto/connector/v1"
 	chainv1 "github.com/tech/sendico/pkg/proto/gateway/chain/v1"
 	"google.golang.org/grpc"
+	"google.golang.org/protobuf/types/known/wrapperspb"
 )

 type stubConnectorClient struct {
@@ -53,7 +54,7 @@ func TestListManagedWallets_ForwardsOrganizationRef(t *testing.T) {

 	_, err := client.ListManagedWallets(context.Background(), &chainv1.ListManagedWalletsRequest{
 		OrganizationRef: "org-1",
-		OwnerRef:        "owner-1",
+		OwnerRefFilter:  wrapperspb.String("owner-1"),
 		Asset: &chainv1.Asset{
 			Chain:       chainv1.ChainNetwork_CHAIN_NETWORK_ETHEREUM_MAINNET,
 			TokenSymbol: "USDC",
@@ -62,6 +63,6 @@ func TestListManagedWallets_ForwardsOrganizationRef(t *testing.T) {
 	require.NoError(t, err)
 	require.NotNil(t, stub.listReq)
 	require.Equal(t, "org-1", stub.listReq.GetOrganizationRef())
-	require.Equal(t, "owner-1", stub.listReq.GetOwnerRef())
+	require.Equal(t, "owner-1", stub.listReq.GetOwnerRefFilter().GetValue())
 	require.Equal(t, connectorv1.AccountKind_CHAIN_MANAGED_WALLET, stub.listReq.GetKind())
 }
--- a/api/gateway/chain/client/rail_gateway.go
+++ b/api/gateway/chain/client/rail_gateway.go
@@ -5,6 +5,7 @@ import (
 	"strings"

 	"github.com/tech/sendico/pkg/merrors"
+	pmodel "github.com/tech/sendico/pkg/model"
 	"github.com/tech/sendico/pkg/payments/rail"
 	moneyv1 "github.com/tech/sendico/pkg/proto/common/money/v1"
 	chainv1 "github.com/tech/sendico/pkg/proto/gateway/chain/v1"
@@ -106,7 +107,7 @@ func (g *chainRailGateway) Send(ctx context.Context, req rail.TransferRequest) (
 			Amount:   amountValue,
 		},
 		Fees:            fees,
-		Metadata:        cloneMetadata(req.Metadata),
+		Metadata:        transferMetadataWithRoles(req.Metadata, req.FromRole, req.ToRole),
 		ClientReference: strings.TrimSpace(req.ClientReference),
 	})
 	if err != nil {
@@ -254,6 +255,26 @@ func railMoneyFromProto(m *moneyv1.Money) *rail.Money {
 	}
 }

+func transferMetadataWithRoles(metadata map[string]string, fromRole, toRole pmodel.AccountRole) map[string]string {
+	result := cloneMetadata(metadata)
+	if strings.TrimSpace(string(fromRole)) != "" {
+		if result == nil {
+			result = map[string]string{}
+		}
+		result[pmodel.MetadataKeyFromRole] = strings.TrimSpace(string(fromRole))
+	}
+	if strings.TrimSpace(string(toRole)) != "" {
+		if result == nil {
+			result = map[string]string{}
+		}
+		result[pmodel.MetadataKeyToRole] = strings.TrimSpace(string(toRole))
+	}
+	if len(result) == 0 {
+		return nil
+	}
+	return result
+}
+
 func cloneMetadata(input map[string]string) map[string]string {
 	if len(input) == 0 {
 		return nil
--- a/api/gateway/chain/config.dev.yml
+++ b/api/gateway/chain/config.dev.yml
@@ -0,0 +1,75 @@
+runtime:
+  shutdown_timeout_seconds: 15
+
+grpc:
+  network: tcp
+  address: ":50070"
+  advertise_host: "dev-chain-gateway"
+  enable_reflection: true
+  enable_health: true
+
+metrics:
+  address: ":9406"
+
+database:
+  driver: mongodb
+  settings:
+    host_env: CHAIN_GATEWAY_MONGO_HOST
+    port_env: CHAIN_GATEWAY_MONGO_PORT
+    database_env: CHAIN_GATEWAY_MONGO_DATABASE
+    user_env: CHAIN_GATEWAY_MONGO_USER
+    password_env: CHAIN_GATEWAY_MONGO_PASSWORD
+    auth_source_env: CHAIN_GATEWAY_MONGO_AUTH_SOURCE
+    replica_set_env: CHAIN_GATEWAY_MONGO_REPLICA_SET
+
+messaging:
+  driver: NATS
+  settings:
+    url_env: NATS_URL
+    host_env: NATS_HOST
+    port_env: NATS_PORT
+    username_env: NATS_USER
+    password_env: NATS_PASSWORD
+    broker_name: Chain Gateway Service
+    max_reconnects: 10
+    reconnect_wait: 5
+    buffer_size: 1024
+
+chains:
+  - name: arbitrum_sepolia
+    chain_id: 421614
+    native_token: ETH
+    rpc_url_env: CHAIN_GATEWAY_RPC_URL
+
+    gas_topup_policy:
+      buffer_percent: 0.20
+      min_native_balance: 0.002
+      rounding_unit: 0.001
+      max_topup: 0.02
+
+    tokens:
+      # Test USDT (official test deployment)
+      - symbol: USDT
+        contract: "0x5c6b6d1f2f2f6d7b8a9c3e4f5a6b7c8d9e0f1234"
+
+      # Test USDC (Circle test deployment)
+      - symbol: USDC
+        contract: "0x75faf114eafb1bdbe2f0316df893fd58ce46aa4d"
+
+service_wallet:
+  chain: arbitrum_sepolia
+  address_env: CHAIN_GATEWAY_SERVICE_WALLET_ADDRESS
+  private_key_env: CHAIN_GATEWAY_SERVICE_WALLET_KEY
+
+key_management:
+  driver: vault
+  settings:
+    address: "http://dev-vault:8200"
+    token_env: VAULT_TOKEN
+    namespace: ""
+    mount_path: kv
+    key_prefix: gateway/chain/wallets
+
+cache:
+  wallet_balance_ttl_seconds: 120
+  rpc_request_timeout_seconds: 15
--- a/api/gateway/chain/config.yml
+++ b/api/gateway/chain/config.yml
@@ -36,23 +36,25 @@ messaging:
    buffer_size: 1024

 chains:
-  - name: tron_mainnet
-    chain_id: 728126428 # 0x2b6653dc
-    native_token: TRX
+  - name: arbitrum_one
+    chain_id: 42161
+    native_token: ETH
    rpc_url_env: CHAIN_GATEWAY_RPC_URL
+
    gas_topup_policy:
-      buffer_percent: 0.10
-      min_native_balance_trx: 10
-      rounding_unit_trx: 1
-      max_topup_trx: 100
+      buffer_percent: 0.15
+      min_native_balance: 0.005
+      rounding_unit: 0.001
+      max_topup: 0.05
+
    tokens:
      - symbol: USDT
-        contract: "0xa614f803b6fd780986a42c78ec9c7f77e6ded13c"
+        contract: "0xfd086bc7cd5c481dcc9c85ebe478a1c0b69fcbb9"
      - symbol: USDC
-        contract: "0x3487b63d30b5b2c87fb7ffa8bcfade38eaac1abe"
+        contract: "0xaf88d065e77c8cc2239327c5edb3a432268e5831"

 service_wallet:
-  chain: tron_mainnet
+  chain: arbitrum_one
  address_env: CHAIN_GATEWAY_SERVICE_WALLET_ADDRESS
  private_key_env: CHAIN_GATEWAY_SERVICE_WALLET_KEY

--- a/api/gateway/chain/go.mod
+++ b/api/gateway/chain/go.mod
@@ -1,6 +1,6 @@
 module github.com/tech/sendico/gateway/chain

-go 1.25.3
+go 1.25.6

 replace github.com/tech/sendico/pkg => ../../pkg

@@ -22,7 +22,7 @@ require (

 require (
 	github.com/Microsoft/go-winio v0.6.2 // indirect
-	github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20260124092617-829590d2c921 // indirect
+	github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20260128015922-c6a88330dfcd // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bits-and-blooms/bitset v1.24.4 // indirect
 	github.com/bmatcuk/doublestar/v4 v4.10.0 // indirect
@@ -86,5 +86,5 @@ require (
 	golang.org/x/sys v0.40.0 // indirect
 	golang.org/x/text v0.33.0 // indirect
 	golang.org/x/time v0.14.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260122232226-8e98ce8d340d // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260128011058-8636f8732409 // indirect
 )
--- a/api/gateway/chain/go.sum
+++ b/api/gateway/chain/go.sum
@@ -6,8 +6,8 @@ github.com/DataDog/zstd v1.4.5 h1:EndNeuB0l9syBZhut0wns3gV1hL8zX8LIu6ZiVHWLIQ=
 github.com/DataDog/zstd v1.4.5/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
 github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
 github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
-github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20260124092617-829590d2c921 h1:NxRnjiL8BBFLCnsDv18a20vb1d34TUiiZtdJGqpj3xs=
-github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20260124092617-829590d2c921/go.mod h1:ioLG6R+5bUSO1oeGSDxOV3FADARuMoytZCSX6MEMQkI=
+github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20260128015922-c6a88330dfcd h1:Q1TFWVLXoK7DoPIIBE7K0lDScjlxcRI0IUxjrm3yZ8A=
+github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20260128015922-c6a88330dfcd/go.mod h1:ioLG6R+5bUSO1oeGSDxOV3FADARuMoytZCSX6MEMQkI=
 github.com/VictoriaMetrics/fastcache v1.13.0 h1:AW4mheMR5Vd9FkAPUv+NH6Nhw+fmbTMGMsNAoA/+4G0=
 github.com/VictoriaMetrics/fastcache v1.13.0/go.mod h1:hHXhl4DA2fTL2HTZDJFXWgW0LNjo6B+4aj2Wmng3TjU=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
@@ -362,8 +362,8 @@ golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
 gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260122232226-8e98ce8d340d h1:xXzuihhT3gL/ntduUZwHECzAn57E8dA6l8SOtYWdD8Q=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260122232226-8e98ce8d340d/go.mod h1:j9x/tPzZkyxcgEFkiKEEGxfvyumM01BEtsW8xzOahRQ=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260128011058-8636f8732409 h1:H86B94AW+VfJWDqFeEbBPhEtHzJwJfTbgE2lZa54ZAQ=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260128011058-8636f8732409/go.mod h1:j9x/tPzZkyxcgEFkiKEEGxfvyumM01BEtsW8xzOahRQ=
 google.golang.org/grpc v1.78.0 h1:K1XZG/yGDJnzMdd/uZHAkVqJE+xIDOcmdSFZkBUicNc=
 google.golang.org/grpc v1.78.0/go.mod h1:I47qjTo4OKbMkjA/aOOwxDIiPSBofUtQUI5EfpWvW7U=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
--- a/api/gateway/chain/internal/server/internal/serverimp.go
+++ b/api/gateway/chain/internal/server/internal/serverimp.go
@@ -77,9 +77,9 @@ type gasTopUpPolicyConfig struct {

 type gasTopUpRuleConfig struct {
 	BufferPercent       float64 `yaml:"buffer_percent"`
-	MinNativeBalanceTRX float64 `yaml:"min_native_balance_trx"`
-	RoundingUnitTRX     float64 `yaml:"rounding_unit_trx"`
-	MaxTopUpTRX         float64 `yaml:"max_topup_trx"`
+	MinNativeBalanceTRX float64 `yaml:"min_native_balance"`
+	RoundingUnitTRX     float64 `yaml:"rounding_unit"`
+	MaxTopUpTRX         float64 `yaml:"max_topup"`
 }

 // Create initialises the chain gateway server implementation.
@@ -308,13 +308,13 @@ func parseGasTopUpRule(chainName, label string, cfg gasTopUpRuleConfig) (gateway
 		return gatewayshared.GasTopUpRule{}, true, merrors.InvalidArgument(fmt.Sprintf("chain %s gas_topup_policy %s buffer_percent must be >= 0", chainName, label))
 	}
 	if cfg.MinNativeBalanceTRX < 0 {
-		return gatewayshared.GasTopUpRule{}, true, merrors.InvalidArgument(fmt.Sprintf("chain %s gas_topup_policy %s min_native_balance_trx must be >= 0", chainName, label))
+		return gatewayshared.GasTopUpRule{}, true, merrors.InvalidArgument(fmt.Sprintf("chain %s gas_topup_policy %s min_native_balance must be >= 0", chainName, label))
 	}
 	if cfg.RoundingUnitTRX <= 0 {
-		return gatewayshared.GasTopUpRule{}, true, merrors.InvalidArgument(fmt.Sprintf("chain %s gas_topup_policy %s rounding_unit_trx must be > 0", chainName, label))
+		return gatewayshared.GasTopUpRule{}, true, merrors.InvalidArgument(fmt.Sprintf("chain %s gas_topup_policy %s rounding_unit must be > 0", chainName, label))
 	}
 	if cfg.MaxTopUpTRX <= 0 {
-		return gatewayshared.GasTopUpRule{}, true, merrors.InvalidArgument(fmt.Sprintf("chain %s gas_topup_policy %s max_topup_trx must be > 0", chainName, label))
+		return gatewayshared.GasTopUpRule{}, true, merrors.InvalidArgument(fmt.Sprintf("chain %s gas_topup_policy %s max_topup must be > 0", chainName, label))
 	}
 	return gatewayshared.GasTopUpRule{
 		BufferPercent:    decimal.NewFromFloat(cfg.BufferPercent),
--- a/api/gateway/chain/internal/service/gateway/commands/transfer/gas_topup.go
+++ b/api/gateway/chain/internal/service/gateway/commands/transfer/gas_topup.go
@@ -7,7 +7,6 @@ import (
 	"github.com/shopspring/decimal"
 	"github.com/tech/sendico/gateway/chain/internal/service/gateway/commands/wallet"
 	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver/evm"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver/tron"
 	"github.com/tech/sendico/gateway/chain/internal/service/gateway/shared"
 	"github.com/tech/sendico/gateway/chain/storage/model"
 	"github.com/tech/sendico/pkg/api/routers/gsresponse"
@@ -48,12 +47,12 @@ func (c *computeGasTopUpCommand) Execute(ctx context.Context, req *chainv1.Compu
 		return gsresponse.InvalidArgument[chainv1.ComputeGasTopUpResponse](c.deps.Logger, mservice.ChainGateway, merrors.InvalidArgument("estimated_total_fee is required"))
 	}

-	topUp, capHit, decision, nativeBalance, walletModel, err := computeGasTopUp(ctx, c.deps, walletRef, estimatedFee)
+	topUp, capHit, nativeBalance, walletModel, err := computeGasTopUp(ctx, c.deps, walletRef, estimatedFee)
 	if err != nil {
 		return gsresponse.Auto[chainv1.ComputeGasTopUpResponse](c.deps.Logger, mservice.ChainGateway, err)
 	}

-	logDecision(c.deps.Logger, walletRef, estimatedFee, nativeBalance, topUp, capHit, decision, walletModel)
+	logDecision(c.deps.Logger, walletRef, estimatedFee, nativeBalance, topUp, capHit, walletModel)

 	return gsresponse.Success(&chainv1.ComputeGasTopUpResponse{
 		TopupAmount: topUp,
@@ -105,12 +104,12 @@ func (c *ensureGasTopUpCommand) Execute(ctx context.Context, req *chainv1.Ensure
 		return gsresponse.InvalidArgument[chainv1.EnsureGasTopUpResponse](c.deps.Logger, mservice.ChainGateway, merrors.InvalidArgument("estimated_total_fee is required"))
 	}

-	topUp, capHit, decision, nativeBalance, walletModel, err := computeGasTopUp(ctx, c.deps, targetWalletRef, estimatedFee)
+	topUp, capHit, nativeBalance, walletModel, err := computeGasTopUp(ctx, c.deps, targetWalletRef, estimatedFee)
 	if err != nil {
 		return gsresponse.Auto[chainv1.EnsureGasTopUpResponse](c.deps.Logger, mservice.ChainGateway, err)
 	}

-	logDecision(c.deps.Logger, targetWalletRef, estimatedFee, nativeBalance, topUp, capHit, decision, walletModel)
+	logDecision(c.deps.Logger, targetWalletRef, estimatedFee, nativeBalance, topUp, capHit, walletModel)

 	if topUp == nil || strings.TrimSpace(topUp.GetAmount()) == "" {
 		return gsresponse.Success(&chainv1.EnsureGasTopUpResponse{
@@ -145,46 +144,42 @@ func (c *ensureGasTopUpCommand) Execute(ctx context.Context, req *chainv1.Ensure
 	}
 }

-func computeGasTopUp(ctx context.Context, deps Deps, walletRef string, estimatedFee *moneyv1.Money) (*moneyv1.Money, bool, *tron.GasTopUpDecision, *moneyv1.Money, *model.ManagedWallet, error) {
+func computeGasTopUp(ctx context.Context, deps Deps, walletRef string, estimatedFee *moneyv1.Money) (*moneyv1.Money, bool, *moneyv1.Money, *model.ManagedWallet, error) {
 	walletRef = strings.TrimSpace(walletRef)
 	estimatedFee = shared.CloneMoney(estimatedFee)
 	walletModel, err := deps.Storage.Wallets().Get(ctx, walletRef)
 	if err != nil {
-		return nil, false, nil, nil, nil, err
+		return nil, false, nil, nil, err
 	}

 	networkKey := strings.ToLower(strings.TrimSpace(walletModel.Network))
+	if strings.HasPrefix(networkKey, "tron") {
+		return nil, false, nil, nil, merrors.InvalidArgument("tron networks must use the tron gateway")
+	}
+
 	networkCfg, ok := deps.Networks.Network(networkKey)
 	if !ok {
-		return nil, false, nil, nil, nil, merrors.InvalidArgument("unsupported chain for wallet")
+		return nil, false, nil, nil, merrors.InvalidArgument("unsupported chain for wallet")
 	}

 	nativeBalance, err := nativeBalanceForWallet(ctx, deps, walletModel)
 	if err != nil {
-		return nil, false, nil, nil, nil, err
-	}
-
-	if strings.HasPrefix(networkKey, "tron") {
-		topUp, decision, err := tron.ComputeGasTopUp(networkCfg, walletModel, estimatedFee, nativeBalance)
-		if err != nil {
-			return nil, false, nil, nil, nil, err
-		}
-		return topUp, decision.CapHit, &decision, nativeBalance, walletModel, nil
+		return nil, false, nil, nil, err
 	}

 	if networkCfg.GasTopUpPolicy != nil {
 		topUp, capHit, err := evm.ComputeGasTopUp(networkCfg, walletModel, estimatedFee, nativeBalance)
 		if err != nil {
-			return nil, false, nil, nil, nil, err
+			return nil, false, nil, nil, err
 		}
-		return topUp, capHit, nil, nativeBalance, walletModel, nil
+		return topUp, capHit, nativeBalance, walletModel, nil
 	}

 	topUp, err := defaultGasTopUp(estimatedFee, nativeBalance)
 	if err != nil {
-		return nil, false, nil, nil, nil, err
+		return nil, false, nil, nil, err
 	}
-	return topUp, false, nil, nativeBalance, walletModel, nil
+	return topUp, false, nativeBalance, walletModel, nil
 }

 func nativeBalanceForWallet(ctx context.Context, deps Deps, walletModel *model.ManagedWallet) (*moneyv1.Money, error) {
@@ -241,7 +236,7 @@ func defaultGasTopUp(estimatedFee *moneyv1.Money, currentBalance *moneyv1.Money)
 	}, nil
 }

-func logDecision(logger mlogger.Logger, walletRef string, estimatedFee *moneyv1.Money, nativeBalance *moneyv1.Money, topUp *moneyv1.Money, capHit bool, decision *tron.GasTopUpDecision, walletModel *model.ManagedWallet) {
+func logDecision(logger mlogger.Logger, walletRef string, estimatedFee *moneyv1.Money, nativeBalance *moneyv1.Money, topUp *moneyv1.Money, capHit bool, walletModel *model.ManagedWallet) {
 	if logger == nil {
 		return
 	}
@@ -255,19 +250,6 @@ func logDecision(logger mlogger.Logger, walletRef string, estimatedFee *moneyv1.
 	if walletModel != nil {
 		fields = append(fields, zap.String("network", strings.TrimSpace(walletModel.Network)))
 	}
-	if decision != nil {
-		fields = append(fields,
-			zap.String("estimated_total_fee_trx", decision.EstimatedFeeTRX.String()),
-			zap.String("current_native_balance_trx", decision.CurrentBalanceTRX.String()),
-			zap.String("required_trx", decision.RequiredTRX.String()),
-			zap.String("buffered_required_trx", decision.BufferedRequiredTRX.String()),
-			zap.String("min_balance_topup_trx", decision.MinBalanceTopUpTRX.String()),
-			zap.String("raw_topup_trx", decision.RawTopUpTRX.String()),
-			zap.String("rounded_topup_trx", decision.RoundedTopUpTRX.String()),
-			zap.String("topup_trx", decision.TopUpTRX.String()),
-			zap.String("operation_type", decision.OperationType),
-		)
-	}
 	logger.Info("Gas top-up decision", fields...)
 }

--- a/api/gateway/chain/internal/service/gateway/commands/wallet/get.go
+++ b/api/gateway/chain/internal/service/gateway/commands/wallet/get.go
@@ -37,8 +37,10 @@ func (c *getManagedWalletCommand) Execute(ctx context.Context, req *chainv1.GetM
 	wallet, err := c.deps.Storage.Wallets().Get(ctx, walletRef)
 	if err != nil {
 		if errors.Is(err, merrors.ErrNoData) {
-			c.deps.Logger.Warn("Not found", zap.String("wallet_ref", walletRef))
-			return gsresponse.NotFound[chainv1.GetManagedWalletResponse](c.deps.Logger, mservice.ChainGateway, err)
+			// Missing wallet is normal when checking external addresses; avoid warning noise.
+			c.deps.Logger.Debug("Not found", zap.String("wallet_ref", walletRef))
+			quietLogger := c.deps.Logger.WithOptions(zap.IncreaseLevel(zap.ErrorLevel))
+			return gsresponse.NotFound[chainv1.GetManagedWalletResponse](quietLogger, mservice.ChainGateway, err)
 		}
 		c.deps.Logger.Warn("Storage get failed", zap.Error(err), zap.String("wallet_ref", walletRef))
 		return gsresponse.Auto[chainv1.GetManagedWalletResponse](c.deps.Logger, mservice.ChainGateway, err)
--- a/api/gateway/chain/internal/service/gateway/commands/wallet/list.go
+++ b/api/gateway/chain/internal/service/gateway/commands/wallet/list.go
@@ -29,7 +29,10 @@ func (c *listManagedWalletsCommand) Execute(ctx context.Context, req *chainv1.Li
 	filter := model.ManagedWalletFilter{}
 	if req != nil {
 		filter.OrganizationRef = strings.TrimSpace(req.GetOrganizationRef())
-		filter.OwnerRef = strings.TrimSpace(req.GetOwnerRef())
+		if req.GetOwnerRefFilter() != nil {
+			ownerRef := strings.TrimSpace(req.GetOwnerRefFilter().GetValue())
+			filter.OwnerRefFilter = &ownerRef
+		}
 		if asset := req.GetAsset(); asset != nil {
 			filter.Network, _ = shared.ChainKeyFromEnum(asset.GetChain())
 			filter.TokenSymbol = strings.TrimSpace(asset.GetTokenSymbol())
--- a/api/gateway/chain/internal/service/gateway/connector.go
+++ b/api/gateway/chain/internal/service/gateway/connector.go
@@ -95,7 +95,7 @@ func (s *Service) ListAccounts(ctx context.Context, req *connectorv1.ListAccount
 	}
 	resp, err := s.ListManagedWallets(ctx, &chainv1.ListManagedWalletsRequest{
 		OrganizationRef: strings.TrimSpace(req.GetOrganizationRef()),
-		OwnerRef:        strings.TrimSpace(req.GetOwnerRef()),
+		OwnerRefFilter:  req.GetOwnerRefFilter(),
 		Asset:           asset,
 		Page:            req.GetPage(),
 	})
--- a/api/gateway/chain/internal/service/gateway/driver/evm/evm.go
+++ b/api/gateway/chain/internal/service/gateway/driver/evm/evm.go
@@ -221,7 +221,7 @@ func NativeBalance(ctx context.Context, deps driver.Deps, network shared.Network
 		return nil, err
 	}

-	logger.Info("On-chain native balance fetched",
+	logger.Debug("On-chain native balance fetched",
 		append(logFields,
 			zap.String("balance_raw", bal.String()),
 		)...,
@@ -421,8 +421,7 @@ func SubmitTransfer(ctx context.Context, deps driver.Deps, network shared.Networ
 	nonce, err := client.PendingNonceAt(ctx, sourceAddress)
 	if err != nil {
 		logger.Warn("Failed to fetch nonce", zap.Error(err),
-			zap.String("transfer_ref", transfer.TransferRef),
-			zap.String("wallet_ref", source.WalletRef),
+			zap.String("transfer_ref", transfer.TransferRef), zap.String("wallet_ref", source.WalletRef),
 		)
 		return "", executorInternal("failed to fetch nonce", err)
 	}
@@ -430,8 +429,7 @@ func SubmitTransfer(ctx context.Context, deps driver.Deps, network shared.Networ
 	gasPrice, err := client.SuggestGasPrice(ctx)
 	if err != nil {
 		logger.Warn("Failed to suggest gas price", zap.Error(err),
-			zap.String("transfer_ref", transfer.TransferRef),
-			zap.String("network", network.Name),
+			zap.String("transfer_ref", transfer.TransferRef), zap.String("network", network.Name),
 		)
 		return "", executorInternal("failed to suggest gas price", err)
 	}
@@ -479,8 +477,7 @@ func SubmitTransfer(ctx context.Context, deps driver.Deps, network shared.Networ
 		decimals, err := erc20Decimals(ctx, rpcClient, tokenAddress)
 		if err != nil {
 			logger.Warn("Failed to read token decimals", zap.Error(err),
-				zap.String("transfer_ref", transfer.TransferRef),
-				zap.String("contract", contract),
+				zap.String("transfer_ref", transfer.TransferRef), zap.String("contract", contract),
 			)
 			return "", err
 		}
@@ -488,8 +485,7 @@ func SubmitTransfer(ctx context.Context, deps driver.Deps, network shared.Networ
 		amountInt, err := toBaseUnits(amount.Amount, decimals)
 		if err != nil {
 			logger.Warn("Failed to convert amount to base units", zap.Error(err),
-				zap.String("transfer_ref", transfer.TransferRef),
-				zap.String("amount", amount.Amount),
+				zap.String("transfer_ref", transfer.TransferRef), zap.String("amount", amount.Amount),
 			)
 			return "", err
 		}
@@ -522,8 +518,7 @@ func SubmitTransfer(ctx context.Context, deps driver.Deps, network shared.Networ
 	signedTx, err := deps.KeyManager.SignTransaction(ctx, source.KeyReference, tx, chainID)
 	if err != nil {
 		logger.Warn("Failed to sign transaction", zap.Error(err),
-			zap.String("transfer_ref", transfer.TransferRef),
-			zap.String("wallet_ref", source.WalletRef),
+			zap.String("transfer_ref", transfer.TransferRef), zap.String("wallet_ref", source.WalletRef),
 		)
 		return "", err
 	}
@@ -536,10 +531,8 @@ func SubmitTransfer(ctx context.Context, deps driver.Deps, network shared.Networ
 	}

 	txHash := signedTx.Hash().Hex()
-	logger.Info("Transaction submitted",
-		zap.String("transfer_ref", transfer.TransferRef),
-		zap.String("tx_hash", txHash),
-		zap.String("network", network.Name),
+	logger.Info("Transaction submitted", zap.String("transfer_ref", transfer.TransferRef),
+		zap.String("tx_hash", txHash), zap.String("network", network.Name),
 	)

 	return txHash, nil
@@ -578,31 +571,25 @@ func AwaitConfirmation(ctx context.Context, deps driver.Deps, network shared.Net
 			if errors.Is(err, ethereum.NotFound) {
 				select {
 				case <-ticker.C:
-					logger.Debug("Transaction not yet mined",
-						zap.String("tx_hash", txHash),
+					logger.Debug("Transaction not yet mined", zap.String("tx_hash", txHash),
 						zap.String("network", network.Name),
 					)
 					continue
 				case <-ctx.Done():
-					logger.Warn("Context cancelled while awaiting confirmation",
-						zap.String("tx_hash", txHash),
+					logger.Warn("Context cancelled while awaiting confirmation", zap.String("tx_hash", txHash),
 						zap.String("network", network.Name),
 					)
 					return nil, ctx.Err()
 				}
 			}
-			logger.Warn("Failed to fetch transaction receipt",
-				zap.String("tx_hash", txHash),
-				zap.String("network", network.Name),
-				zap.Error(err),
+			logger.Warn("Failed to fetch transaction receipt", zap.Error(err),
+				zap.String("tx_hash", txHash), zap.String("network", network.Name),
 			)
 			return nil, executorInternal("failed to fetch transaction receipt", err)
 		}
-		logger.Info("Transaction confirmed",
-			zap.String("tx_hash", txHash),
-			zap.String("network", network.Name),
+		logger.Info("Transaction confirmed", zap.String("tx_hash", txHash),
+			zap.String("network", network.Name), zap.Uint64("status", receipt.Status),
 			zap.Uint64("block_number", receipt.BlockNumber.Uint64()),
-			zap.Uint64("status", receipt.Status),
 		)
 		return receipt, nil
 	}
--- a/api/gateway/chain/internal/service/gateway/driver/tron/address.go
+++ b/api/gateway/chain/internal/service/gateway/driver/tron/address.go
@@ -1,193 +0,0 @@
-package tron
-
-import (
-	"bytes"
-	"crypto/sha256"
-	"encoding/hex"
-	"fmt"
-	"math/big"
-	"strings"
-
-	"github.com/tech/sendico/pkg/merrors"
-)
-
-const tronHexPrefix = "0x"
-
-var base58Alphabet = []byte("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz")
-
-func normalizeAddress(address string) (string, error) {
-	trimmed := strings.TrimSpace(address)
-	if trimmed == "" {
-		return "", merrors.InvalidArgument("address is required")
-	}
-	if strings.HasPrefix(trimmed, tronHexPrefix) || isHexString(trimmed) {
-		return hexToBase58(trimmed)
-	}
-	decoded, err := base58Decode(trimmed)
-	if err != nil {
-		return "", err
-	}
-	if err := validateChecksum(decoded); err != nil {
-		return "", err
-	}
-	return base58Encode(decoded), nil
-}
-
-func rpcAddress(address string) (string, error) {
-	trimmed := strings.TrimSpace(address)
-	if trimmed == "" {
-		return "", merrors.InvalidArgument("address is required")
-	}
-	if strings.HasPrefix(trimmed, tronHexPrefix) || isHexString(trimmed) {
-		return normalizeHexRPC(trimmed)
-	}
-	return base58ToHex(trimmed)
-}
-
-func hexToBase58(address string) (string, error) {
-	bytesAddr, err := parseHexAddress(address)
-	if err != nil {
-		return "", err
-	}
-	payload := append(bytesAddr, checksum(bytesAddr)...)
-	return base58Encode(payload), nil
-}
-
-func base58ToHex(address string) (string, error) {
-	decoded, err := base58Decode(address)
-	if err != nil {
-		return "", err
-	}
-	if err := validateChecksum(decoded); err != nil {
-		return "", err
-	}
-	return tronHexPrefix + hex.EncodeToString(decoded[1:21]), nil
-}
-
-func parseHexAddress(address string) ([]byte, error) {
-	trimmed := strings.TrimPrefix(strings.TrimSpace(address), tronHexPrefix)
-	if trimmed == "" {
-		return nil, merrors.InvalidArgument("address is required")
-	}
-	if len(trimmed)%2 == 1 {
-		trimmed = "0" + trimmed
-	}
-	decoded, err := hex.DecodeString(trimmed)
-	if err != nil {
-		return nil, merrors.InvalidArgument("invalid hex address")
-	}
-	switch len(decoded) {
-	case 20:
-		prefixed := make([]byte, 21)
-		prefixed[0] = 0x41
-		copy(prefixed[1:], decoded)
-		return prefixed, nil
-	case 21:
-		if decoded[0] != 0x41 {
-			return nil, merrors.InvalidArgument("invalid tron address prefix")
-		}
-		return decoded, nil
-	default:
-		return nil, merrors.InvalidArgument(fmt.Sprintf("invalid tron address length %d", len(decoded)))
-	}
-}
-
-func normalizeHexRPC(address string) (string, error) {
-	decoded, err := parseHexAddress(address)
-	if err != nil {
-		return "", err
-	}
-	return tronHexPrefix + hex.EncodeToString(decoded[1:21]), nil
-}
-
-func validateChecksum(decoded []byte) error {
-	if len(decoded) != 25 {
-		return merrors.InvalidArgument("invalid tron address length")
-	}
-	payload := decoded[:21]
-	expected := checksum(payload)
-	if !bytes.Equal(expected, decoded[21:]) {
-		return merrors.InvalidArgument("invalid tron address checksum")
-	}
-	if payload[0] != 0x41 {
-		return merrors.InvalidArgument("invalid tron address prefix")
-	}
-	return nil
-}
-
-func checksum(payload []byte) []byte {
-	first := sha256.Sum256(payload)
-	second := sha256.Sum256(first[:])
-	return second[:4]
-}
-
-func base58Encode(input []byte) string {
-	if len(input) == 0 {
-		return ""
-	}
-	x := new(big.Int).SetBytes(input)
-	base := big.NewInt(58)
-	zero := big.NewInt(0)
-	mod := new(big.Int)
-
-	encoded := make([]byte, 0, len(input))
-	for x.Cmp(zero) > 0 {
-		x.DivMod(x, base, mod)
-		encoded = append(encoded, base58Alphabet[mod.Int64()])
-	}
-	for _, b := range input {
-		if b != 0 {
-			break
-		}
-		encoded = append(encoded, base58Alphabet[0])
-	}
-	reverse(encoded)
-	return string(encoded)
-}
-
-func base58Decode(input string) ([]byte, error) {
-	result := big.NewInt(0)
-	base := big.NewInt(58)
-
-	for i := 0; i < len(input); i++ {
-		idx := bytes.IndexByte(base58Alphabet, input[i])
-		if idx < 0 {
-			return nil, merrors.InvalidArgument("invalid base58 address")
-		}
-		result.Mul(result, base)
-		result.Add(result, big.NewInt(int64(idx)))
-	}
-
-	decoded := result.Bytes()
-	zeroCount := 0
-	for zeroCount < len(input) && input[zeroCount] == base58Alphabet[0] {
-		zeroCount++
-	}
-	if zeroCount > 0 {
-		decoded = append(make([]byte, zeroCount), decoded...)
-	}
-	return decoded, nil
-}
-
-func reverse(data []byte) {
-	for i, j := 0, len(data)-1; i < j; i, j = i+1, j-1 {
-		data[i], data[j] = data[j], data[i]
-	}
-}
-
-func isHexString(value string) bool {
-	trimmed := strings.TrimPrefix(strings.TrimSpace(value), tronHexPrefix)
-	if trimmed == "" {
-		return false
-	}
-	for _, r := range trimmed {
-		switch {
-		case r >= '0' && r <= '9':
-		case r >= 'a' && r <= 'f':
-		case r >= 'A' && r <= 'F':
-		default:
-			return false
-		}
-	}
-	return true
-}
--- a/api/gateway/chain/internal/service/gateway/driver/tron/driver.go
+++ b/api/gateway/chain/internal/service/gateway/driver/tron/driver.go
@@ -1,245 +0,0 @@
-package tron
-
-import (
-	"context"
-	"strings"
-
-	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver/evm"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/shared"
-	"github.com/tech/sendico/gateway/chain/storage/model"
-	"github.com/tech/sendico/pkg/merrors"
-	"github.com/tech/sendico/pkg/mlogger"
-	moneyv1 "github.com/tech/sendico/pkg/proto/common/money/v1"
-	"go.uber.org/zap"
-)
-
-// Driver implements Tron-specific behavior, including address conversion.
-type Driver struct {
-	logger mlogger.Logger
-}
-
-func New(logger mlogger.Logger) *Driver {
-	return &Driver{logger: logger.Named("tron")}
-}
-
-func (d *Driver) Name() string {
-	return "tron"
-}
-
-func (d *Driver) FormatAddress(address string) (string, error) {
-	d.logger.Debug("Format address", zap.String("address", address))
-	normalized, err := normalizeAddress(address)
-	if err != nil {
-		d.logger.Warn("Format address failed", zap.String("address", address), zap.Error(err))
-	}
-	return normalized, err
-}
-
-func (d *Driver) NormalizeAddress(address string) (string, error) {
-	d.logger.Debug("Normalize address", zap.String("address", address))
-	normalized, err := normalizeAddress(address)
-	if err != nil {
-		d.logger.Warn("Normalize address failed", zap.String("address", address), zap.Error(err))
-	}
-	return normalized, err
-}
-
-func (d *Driver) Balance(ctx context.Context, deps driver.Deps, network shared.Network, wallet *model.ManagedWallet) (*moneyv1.Money, error) {
-	if wallet == nil {
-		return nil, merrors.InvalidArgument("wallet is required")
-	}
-	d.logger.Debug("Balance request", zap.String("wallet_ref", wallet.WalletRef), zap.String("network", network.Name))
-	rpcAddr, err := rpcAddress(wallet.DepositAddress)
-	if err != nil {
-		d.logger.Warn("Balance address conversion failed", zap.Error(err),
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("address", wallet.DepositAddress),
-		)
-		return nil, err
-	}
-	driverDeps := deps
-	driverDeps.Logger = d.logger
-	result, err := evm.Balance(ctx, driverDeps, network, wallet, rpcAddr)
-	if err != nil {
-		d.logger.Warn("Balance failed", zap.Error(err),
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("network", network.Name),
-		)
-	} else if result != nil {
-		d.logger.Debug("Balance result",
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("network", network.Name),
-			zap.String("amount", result.Amount),
-			zap.String("currency", result.Currency),
-		)
-	}
-	return result, err
-}
-
-func (d *Driver) NativeBalance(ctx context.Context, deps driver.Deps, network shared.Network, wallet *model.ManagedWallet) (*moneyv1.Money, error) {
-	if wallet == nil {
-		return nil, merrors.InvalidArgument("wallet is required")
-	}
-	d.logger.Debug("Native balance request", zap.String("wallet_ref", wallet.WalletRef), zap.String("network", network.Name))
-	rpcAddr, err := rpcAddress(wallet.DepositAddress)
-	if err != nil {
-		d.logger.Warn("Native balance address conversion failed", zap.Error(err),
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("address", wallet.DepositAddress),
-		)
-		return nil, err
-	}
-	driverDeps := deps
-	driverDeps.Logger = d.logger
-	result, err := evm.NativeBalance(ctx, driverDeps, network, wallet, rpcAddr)
-	if err != nil {
-		d.logger.Warn("Native balance failed", zap.Error(err),
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("network", network.Name),
-		)
-	} else if result != nil {
-		d.logger.Debug("Native balance result",
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("network", network.Name),
-			zap.String("amount", result.Amount),
-			zap.String("currency", result.Currency),
-		)
-	}
-	return result, err
-}
-
-func (d *Driver) EstimateFee(ctx context.Context, deps driver.Deps, network shared.Network, wallet *model.ManagedWallet, destination string, amount *moneyv1.Money) (*moneyv1.Money, error) {
-	if wallet == nil {
-		return nil, merrors.InvalidArgument("wallet is required")
-	}
-	if amount == nil {
-		return nil, merrors.InvalidArgument("amount is required")
-	}
-	d.logger.Debug("Estimate fee request",
-		zap.String("wallet_ref", wallet.WalletRef),
-		zap.String("network", network.Name),
-		zap.String("destination", destination),
-	)
-	rpcFrom, err := rpcAddress(wallet.DepositAddress)
-	if err != nil {
-		d.logger.Warn("Estimate fee address conversion failed", zap.Error(err),
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("address", wallet.DepositAddress),
-		)
-		return nil, err
-	}
-	rpcTo, err := rpcAddress(destination)
-	if err != nil {
-		d.logger.Warn("Estimate fee destination conversion failed", zap.Error(err),
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("destination", destination),
-		)
-		return nil, err
-	}
-	if rpcFrom == rpcTo {
-		return &moneyv1.Money{
-			Currency: nativeCurrency(network),
-			Amount:   "0",
-		}, nil
-	}
-	driverDeps := deps
-	driverDeps.Logger = d.logger
-	result, err := evm.EstimateFee(ctx, driverDeps, network, wallet, rpcFrom, rpcTo, amount)
-	if err != nil {
-		d.logger.Warn("Estimate fee failed", zap.Error(err),
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("network", network.Name),
-			zap.String("from_address", wallet.DepositAddress),
-			zap.String("from_rpc", rpcFrom),
-			zap.String("to_address", destination),
-			zap.String("to_rpc", rpcTo),
-		)
-	} else if result != nil {
-		d.logger.Debug("Estimate fee result",
-			zap.String("wallet_ref", wallet.WalletRef),
-			zap.String("network", network.Name),
-			zap.String("amount", result.Amount),
-			zap.String("currency", result.Currency),
-		)
-	}
-	return result, err
-}
-
-func (d *Driver) SubmitTransfer(ctx context.Context, deps driver.Deps, network shared.Network, transfer *model.Transfer, source *model.ManagedWallet, destination string) (string, error) {
-	if source == nil {
-		return "", merrors.InvalidArgument("source wallet is required")
-	}
-	d.logger.Debug("Submit transfer request",
-		zap.String("transfer_ref", transfer.TransferRef),
-		zap.String("network", network.Name),
-		zap.String("destination", destination),
-	)
-	rpcFrom, err := rpcAddress(source.DepositAddress)
-	if err != nil {
-		d.logger.Warn("Submit transfer address conversion failed", zap.Error(err),
-			zap.String("wallet_ref", source.WalletRef),
-			zap.String("address", source.DepositAddress),
-		)
-		return "", err
-	}
-	rpcTo, err := rpcAddress(destination)
-	if err != nil {
-		d.logger.Warn("Submit transfer destination conversion failed", zap.Error(err),
-			zap.String("transfer_ref", transfer.TransferRef),
-			zap.String("destination", destination),
-		)
-		return "", err
-	}
-	driverDeps := deps
-	driverDeps.Logger = d.logger
-	txHash, err := evm.SubmitTransfer(ctx, driverDeps, network, transfer, source, rpcFrom, rpcTo)
-	if err != nil {
-		d.logger.Warn("Submit transfer failed", zap.Error(err),
-			zap.String("transfer_ref", transfer.TransferRef),
-			zap.String("network", network.Name),
-		)
-	} else {
-		d.logger.Debug("Submit transfer result",
-			zap.String("transfer_ref", transfer.TransferRef),
-			zap.String("network", network.Name),
-			zap.String("tx_hash", txHash),
-		)
-	}
-	return txHash, err
-}
-
-func (d *Driver) AwaitConfirmation(ctx context.Context, deps driver.Deps, network shared.Network, txHash string) (*types.Receipt, error) {
-	d.logger.Debug("Awaiting confirmation",
-		zap.String("tx_hash", txHash),
-		zap.String("network", network.Name),
-	)
-	driverDeps := deps
-	driverDeps.Logger = d.logger
-	receipt, err := evm.AwaitConfirmation(ctx, driverDeps, network, txHash)
-	if err != nil {
-		d.logger.Warn("Awaiting of confirmation failed", zap.Error(err),
-			zap.String("tx_hash", txHash),
-			zap.String("network", network.Name),
-		)
-	} else if receipt != nil {
-		d.logger.Debug("Await confirmation result",
-			zap.String("tx_hash", txHash),
-			zap.String("network", network.Name),
-			zap.Uint64("block_number", receipt.BlockNumber.Uint64()),
-			zap.Uint64("status", receipt.Status),
-		)
-	}
-	return receipt, err
-}
-
-func nativeCurrency(network shared.Network) string {
-	currency := strings.ToUpper(strings.TrimSpace(network.NativeToken))
-	if currency == "" {
-		currency = strings.ToUpper(strings.TrimSpace(network.Name))
-	}
-	return currency
-}
-
-var _ driver.Driver = (*Driver)(nil)
--- a/api/gateway/chain/internal/service/gateway/driver/tron/driver_test.go
+++ b/api/gateway/chain/internal/service/gateway/driver/tron/driver_test.go
@@ -1,33 +0,0 @@
-package tron
-
-import (
-	"context"
-	"testing"
-
-	"github.com/stretchr/testify/require"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/shared"
-	"github.com/tech/sendico/gateway/chain/storage/model"
-	moneyv1 "github.com/tech/sendico/pkg/proto/common/money/v1"
-	"go.uber.org/zap"
-)
-
-func TestEstimateFeeSelfTransferReturnsZero(t *testing.T) {
-	logger := zap.NewNop()
-	d := New(logger)
-	wallet := &model.ManagedWallet{
-		WalletRef:      "wallet_ref",
-		DepositAddress: "TGBDXEg9rxSqGFJDcb889zqTjDwx1bmLRF",
-	}
-	network := shared.Network{
-		Name:        "tron_mainnet",
-		NativeToken: "TRX",
-	}
-	amount := &moneyv1.Money{Currency: "TRX", Amount: "1000000"}
-
-	fee, err := d.EstimateFee(context.Background(), driver.Deps{}, network, wallet, wallet.DepositAddress, amount)
-	require.NoError(t, err)
-	require.NotNil(t, fee)
-	require.Equal(t, "TRX", fee.GetCurrency())
-	require.Equal(t, "0", fee.GetAmount())
-}
--- a/api/gateway/chain/internal/service/gateway/driver/tron/gas_topup.go
+++ b/api/gateway/chain/internal/service/gateway/driver/tron/gas_topup.go
@@ -1,143 +0,0 @@
-package tron
-
-import (
-	"fmt"
-	"strings"
-
-	"github.com/shopspring/decimal"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/shared"
-	"github.com/tech/sendico/gateway/chain/storage/model"
-	"github.com/tech/sendico/pkg/merrors"
-	moneyv1 "github.com/tech/sendico/pkg/proto/common/money/v1"
-)
-
-var tronBaseUnitFactor = decimal.NewFromInt(1_000_000)
-
-// GasTopUpDecision captures the applied policy inputs and outputs (in TRX units).
-type GasTopUpDecision struct {
-	CurrentBalanceTRX   decimal.Decimal
-	EstimatedFeeTRX     decimal.Decimal
-	RequiredTRX         decimal.Decimal
-	BufferedRequiredTRX decimal.Decimal
-	MinBalanceTopUpTRX  decimal.Decimal
-	RawTopUpTRX         decimal.Decimal
-	RoundedTopUpTRX     decimal.Decimal
-	TopUpTRX            decimal.Decimal
-	CapHit              bool
-	OperationType       string
-}
-
-// ComputeGasTopUp applies the network policy to decide a TRX top-up amount.
-func ComputeGasTopUp(network shared.Network, wallet *model.ManagedWallet, estimatedFee *moneyv1.Money, currentBalance *moneyv1.Money) (*moneyv1.Money, GasTopUpDecision, error) {
-	decision := GasTopUpDecision{}
-	if wallet == nil {
-		return nil, decision, merrors.InvalidArgument("wallet is required")
-	}
-	if estimatedFee == nil || strings.TrimSpace(estimatedFee.GetAmount()) == "" || strings.TrimSpace(estimatedFee.GetCurrency()) == "" {
-		return nil, decision, merrors.InvalidArgument("estimated fee is required")
-	}
-	if currentBalance == nil || strings.TrimSpace(currentBalance.GetAmount()) == "" || strings.TrimSpace(currentBalance.GetCurrency()) == "" {
-		return nil, decision, merrors.InvalidArgument("current native balance is required")
-	}
-	if network.GasTopUpPolicy == nil {
-		return nil, decision, merrors.InvalidArgument("gas top-up policy is not configured")
-	}
-
-	nativeCurrency := strings.TrimSpace(network.NativeToken)
-	if nativeCurrency == "" {
-		nativeCurrency = strings.ToUpper(strings.TrimSpace(network.Name))
-	}
-	if !strings.EqualFold(nativeCurrency, estimatedFee.GetCurrency()) {
-		return nil, decision, merrors.InvalidArgument(fmt.Sprintf("estimated fee currency mismatch (expected %s)", nativeCurrency))
-	}
-	if !strings.EqualFold(nativeCurrency, currentBalance.GetCurrency()) {
-		return nil, decision, merrors.InvalidArgument(fmt.Sprintf("native balance currency mismatch (expected %s)", nativeCurrency))
-	}
-
-	estimatedTRX, err := tronToTRX(estimatedFee)
-	if err != nil {
-		return nil, decision, err
-	}
-	currentTRX, err := tronToTRX(currentBalance)
-	if err != nil {
-		return nil, decision, err
-	}
-
-	isContract := strings.TrimSpace(wallet.ContractAddress) != ""
-	rule, ok := network.GasTopUpPolicy.Rule(isContract)
-	if !ok {
-		return nil, decision, merrors.InvalidArgument("gas top-up policy is not configured")
-	}
-	if rule.RoundingUnit.LessThanOrEqual(decimal.Zero) {
-		return nil, decision, merrors.InvalidArgument("gas top-up rounding unit must be > 0")
-	}
-	if rule.MaxTopUp.LessThanOrEqual(decimal.Zero) {
-		return nil, decision, merrors.InvalidArgument("gas top-up max top-up must be > 0")
-	}
-
-	required := estimatedTRX.Sub(currentTRX)
-	if required.IsNegative() {
-		required = decimal.Zero
-	}
-	bufferedRequired := required.Mul(decimal.NewFromInt(1).Add(rule.BufferPercent))
-
-	minBalanceTopUp := rule.MinNativeBalance.Sub(currentTRX)
-	if minBalanceTopUp.IsNegative() {
-		minBalanceTopUp = decimal.Zero
-	}
-
-	rawTopUp := bufferedRequired
-	if minBalanceTopUp.GreaterThan(rawTopUp) {
-		rawTopUp = minBalanceTopUp
-	}
-
-	roundedTopUp := decimal.Zero
-	if rawTopUp.IsPositive() {
-		roundedTopUp = rawTopUp.Div(rule.RoundingUnit).Ceil().Mul(rule.RoundingUnit)
-	}
-
-	topUp := roundedTopUp
-	capHit := false
-	if topUp.GreaterThan(rule.MaxTopUp) {
-		topUp = rule.MaxTopUp
-		capHit = true
-	}
-
-	decision = GasTopUpDecision{
-		CurrentBalanceTRX:   currentTRX,
-		EstimatedFeeTRX:     estimatedTRX,
-		RequiredTRX:         required,
-		BufferedRequiredTRX: bufferedRequired,
-		MinBalanceTopUpTRX:  minBalanceTopUp,
-		RawTopUpTRX:         rawTopUp,
-		RoundedTopUpTRX:     roundedTopUp,
-		TopUpTRX:            topUp,
-		CapHit:              capHit,
-		OperationType:       operationType(isContract),
-	}
-
-	if !topUp.IsPositive() {
-		return nil, decision, nil
-	}
-
-	baseUnits := topUp.Mul(tronBaseUnitFactor).Ceil().Truncate(0)
-	return &moneyv1.Money{
-		Currency: strings.ToUpper(nativeCurrency),
-		Amount:   baseUnits.StringFixed(0),
-	}, decision, nil
-}
-
-func tronToTRX(amount *moneyv1.Money) (decimal.Decimal, error) {
-	value, err := decimal.NewFromString(strings.TrimSpace(amount.GetAmount()))
-	if err != nil {
-		return decimal.Zero, err
-	}
-	return value.Div(tronBaseUnitFactor), nil
-}
-
-func operationType(contract bool) string {
-	if contract {
-		return "trc20"
-	}
-	return "native"
-}
--- a/api/gateway/chain/internal/service/gateway/driver/tron/gas_topup_test.go
+++ b/api/gateway/chain/internal/service/gateway/driver/tron/gas_topup_test.go
@@ -1,147 +0,0 @@
-package tron
-
-import (
-	"testing"
-
-	"github.com/shopspring/decimal"
-	"github.com/stretchr/testify/require"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/shared"
-	"github.com/tech/sendico/gateway/chain/storage/model"
-	moneyv1 "github.com/tech/sendico/pkg/proto/common/money/v1"
-)
-
-func TestComputeGasTopUp_BalanceSufficient(t *testing.T) {
-	network := tronNetwork(defaultPolicy())
-	wallet := &model.ManagedWallet{}
-
-	topUp, decision, err := ComputeGasTopUp(network, wallet, tronMoney("5"), tronMoney("30"))
-	require.NoError(t, err)
-	require.Nil(t, topUp)
-	require.True(t, decision.TopUpTRX.IsZero())
-}
-
-func TestComputeGasTopUp_BufferedRequired(t *testing.T) {
-	network := tronNetwork(defaultPolicy())
-	wallet := &model.ManagedWallet{}
-
-	topUp, decision, err := ComputeGasTopUp(network, wallet, tronMoney("50"), tronMoney("10"))
-	require.NoError(t, err)
-	require.NotNil(t, topUp)
-	require.Equal(t, "46000000", topUp.GetAmount())
-	require.Equal(t, "TRX", topUp.GetCurrency())
-	require.Equal(t, "46", decision.TopUpTRX.String())
-}
-
-func TestComputeGasTopUp_MinBalanceBinding(t *testing.T) {
-	network := tronNetwork(defaultPolicy())
-	wallet := &model.ManagedWallet{}
-
-	topUp, decision, err := ComputeGasTopUp(network, wallet, tronMoney("5"), tronMoney("1"))
-	require.NoError(t, err)
-	require.NotNil(t, topUp)
-	require.Equal(t, "19000000", topUp.GetAmount())
-	require.Equal(t, "19", decision.TopUpTRX.String())
-}
-
-func TestComputeGasTopUp_RoundsUp(t *testing.T) {
-	policy := shared.GasTopUpPolicy{
-		Default: shared.GasTopUpRule{
-			BufferPercent:    decimal.NewFromFloat(0),
-			MinNativeBalance: decimal.NewFromFloat(0),
-			RoundingUnit:     decimal.NewFromFloat(1),
-			MaxTopUp:         decimal.NewFromFloat(100),
-		},
-	}
-	network := tronNetwork(&policy)
-	wallet := &model.ManagedWallet{}
-
-	topUp, decision, err := ComputeGasTopUp(network, wallet, tronMoney("1.1"), tronMoney("0"))
-	require.NoError(t, err)
-	require.NotNil(t, topUp)
-	require.Equal(t, "2000000", topUp.GetAmount())
-	require.Equal(t, "2", decision.TopUpTRX.String())
-}
-
-func TestComputeGasTopUp_CapHit(t *testing.T) {
-	policy := shared.GasTopUpPolicy{
-		Default: shared.GasTopUpRule{
-			BufferPercent:    decimal.NewFromFloat(0),
-			MinNativeBalance: decimal.NewFromFloat(0),
-			RoundingUnit:     decimal.NewFromFloat(1),
-			MaxTopUp:         decimal.NewFromFloat(10),
-		},
-	}
-	network := tronNetwork(&policy)
-	wallet := &model.ManagedWallet{}
-
-	topUp, decision, err := ComputeGasTopUp(network, wallet, tronMoney("100"), tronMoney("0"))
-	require.NoError(t, err)
-	require.NotNil(t, topUp)
-	require.Equal(t, "10000000", topUp.GetAmount())
-	require.True(t, decision.CapHit)
-}
-
-func TestComputeGasTopUp_MinBalanceWhenRequiredZero(t *testing.T) {
-	network := tronNetwork(defaultPolicy())
-	wallet := &model.ManagedWallet{}
-
-	topUp, decision, err := ComputeGasTopUp(network, wallet, tronMoney("0"), tronMoney("5"))
-	require.NoError(t, err)
-	require.NotNil(t, topUp)
-	require.Equal(t, "15000000", topUp.GetAmount())
-	require.Equal(t, "15", decision.TopUpTRX.String())
-}
-
-func TestComputeGasTopUp_ContractPolicyOverride(t *testing.T) {
-	policy := shared.GasTopUpPolicy{
-		Default: shared.GasTopUpRule{
-			BufferPercent:    decimal.NewFromFloat(0.1),
-			MinNativeBalance: decimal.NewFromFloat(10),
-			RoundingUnit:     decimal.NewFromFloat(1),
-			MaxTopUp:         decimal.NewFromFloat(100),
-		},
-		Contract: &shared.GasTopUpRule{
-			BufferPercent:    decimal.NewFromFloat(0.5),
-			MinNativeBalance: decimal.NewFromFloat(5),
-			RoundingUnit:     decimal.NewFromFloat(1),
-			MaxTopUp:         decimal.NewFromFloat(100),
-		},
-	}
-	network := tronNetwork(&policy)
-	wallet := &model.ManagedWallet{ContractAddress: "0xcontract"}
-
-	topUp, decision, err := ComputeGasTopUp(network, wallet, tronMoney("10"), tronMoney("0"))
-	require.NoError(t, err)
-	require.NotNil(t, topUp)
-	require.Equal(t, "15000000", topUp.GetAmount())
-	require.Equal(t, "15", decision.TopUpTRX.String())
-	require.Equal(t, "trc20", decision.OperationType)
-}
-
-func defaultPolicy() *shared.GasTopUpPolicy {
-	return &shared.GasTopUpPolicy{
-		Default: shared.GasTopUpRule{
-			BufferPercent:    decimal.NewFromFloat(0.15),
-			MinNativeBalance: decimal.NewFromFloat(20),
-			RoundingUnit:     decimal.NewFromFloat(1),
-			MaxTopUp:         decimal.NewFromFloat(500),
-		},
-	}
-}
-
-func tronNetwork(policy *shared.GasTopUpPolicy) shared.Network {
-	return shared.Network{
-		Name:           "tron_mainnet",
-		NativeToken:    "TRX",
-		GasTopUpPolicy: policy,
-	}
-}
-
-func tronMoney(trx string) *moneyv1.Money {
-	value, _ := decimal.NewFromString(trx)
-	baseUnits := value.Mul(tronBaseUnitFactor).Truncate(0)
-	return &moneyv1.Money{
-		Currency: "TRX",
-		Amount:   baseUnits.StringFixed(0),
-	}
-}
--- a/api/gateway/chain/internal/service/gateway/drivers/registry.go
+++ b/api/gateway/chain/internal/service/gateway/drivers/registry.go
@@ -7,7 +7,6 @@ import (
 	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver"
 	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver/arbitrum"
 	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver/ethereum"
-	"github.com/tech/sendico/gateway/chain/internal/service/gateway/driver/tron"
 	"github.com/tech/sendico/gateway/chain/internal/service/gateway/shared"
 	"github.com/tech/sendico/pkg/merrors"
 	"github.com/tech/sendico/pkg/mlogger"
@@ -63,7 +62,7 @@ func (r *Registry) Driver(network string) (driver.Driver, error) {
 func resolveDriver(logger mlogger.Logger, network string) (driver.Driver, error) {
 	switch {
 	case strings.HasPrefix(network, "tron"):
-		return tron.New(logger), nil
+		return nil, merrors.InvalidArgument("tron networks must use the tron gateway, not chain gateway")
 	case strings.HasPrefix(network, "arbitrum"):
 		return arbitrum.New(logger), nil
 	case strings.HasPrefix(network, "ethereum"):
--- a/api/gateway/chain/internal/service/gateway/service_test.go
+++ b/api/gateway/chain/internal/service/gateway/service_test.go
@@ -329,8 +329,11 @@ func (w *inMemoryWallets) List(ctx context.Context, filter model.ManagedWalletFi
 		if filter.OrganizationRef != "" && !strings.EqualFold(wallet.OrganizationRef, filter.OrganizationRef) {
 			continue
 		}
-		if filter.OwnerRef != "" && !strings.EqualFold(wallet.OwnerRef, filter.OwnerRef) {
-			continue
+		if filter.OwnerRefFilter != nil {
+			ownerRef := strings.TrimSpace(*filter.OwnerRefFilter)
+			if !strings.EqualFold(wallet.OwnerRef, ownerRef) {
+				continue
+			}
 		}
 		if filter.Network != "" && !strings.EqualFold(wallet.Network, filter.Network) {
 			continue
--- a/api/gateway/chain/storage/model/wallet.go
+++ b/api/gateway/chain/storage/model/wallet.go
@@ -61,11 +61,15 @@ func (*WalletBalance) Collection() string {
 // ManagedWalletFilter describes list filters.
 type ManagedWalletFilter struct {
 	OrganizationRef string
-	OwnerRef        string
-	Network         string
-	TokenSymbol     string
-	Cursor          string
-	Limit           int32
+	// OwnerRefFilter is a 3-state filter:
+	// - nil: no filter on owner_ref (return all)
+	// - pointer to empty string: filter for wallets where owner_ref is empty
+	// - pointer to a value: filter for wallets where owner_ref matches
+	OwnerRefFilter *string
+	Network        string
+	TokenSymbol    string
+	Cursor         string
+	Limit          int32
 }

 // ManagedWalletList contains paginated wallet results.
--- a/api/gateway/chain/storage/mongo/store/wallets.go
+++ b/api/gateway/chain/storage/mongo/store/wallets.go
@@ -156,9 +156,10 @@ func (w *Wallets) List(ctx context.Context, filter model.ManagedWalletFilter) (*
 		query = query.Filter(repository.Field("organizationRef"), org)
 		fields = append(fields, zap.String("organization_ref", org))
 	}
-	if owner := strings.TrimSpace(filter.OwnerRef); owner != "" {
-		query = query.Filter(repository.Field("ownerRef"), owner)
-		fields = append(fields, zap.String("owner_ref", owner))
+	if filter.OwnerRefFilter != nil {
+		ownerRef := strings.TrimSpace(*filter.OwnerRefFilter)
+		query = query.Filter(repository.Field("ownerRef"), ownerRef)
+		fields = append(fields, zap.String("owner_ref_filter", ownerRef))
 	}
 	if network := strings.TrimSpace(filter.Network); network != "" {
 		normalized := strings.ToLower(network)