fix: min fee usd cents default (#20320)

* fix: make default 25

* fix: automatically update minFeeUsdCents for ETH

* fix: update default value in test cases

Author: chris-de-leon-cll

deployment/ccip/changeset/crossfamily/cs_set_token_transfer_fee_config_test.go

@@ -530,7 +530,7 @@ func TestSetTokenTransferFeeConfig_Solana_V0_1_0_Only(t *testing.T) {
 	solCfgX := getSolanaTokenTransferFeeConfig(t, env.Env, src, dst, state.SolChains[src].FeeQuoter, tokenAddressX)
 	require.Equal(t, tokenAddressX, solCfgX.Mint)
 	require.Equal(t, uint32(math.MaxUint32), solCfgX.TokenTransferConfig.MaxFeeUsdcents)
-	require.Equal(t, uint32(175_000), solCfgX.TokenTransferConfig.MinFeeUsdcents)
+	require.Equal(t, uint32(25), solCfgX.TokenTransferConfig.MinFeeUsdcents)
 	require.Equal(t, uint32(32), solCfgX.TokenTransferConfig.DestBytesOverhead)
 	require.Equal(t, uint32(10), solCfgX.TokenTransferConfig.DestGasOverhead)
 	require.Equal(t, uint16(0), solCfgX.TokenTransferConfig.DeciBps)
@@ -540,7 +540,7 @@ func TestSetTokenTransferFeeConfig_Solana_V0_1_0_Only(t *testing.T) {
 	solCfgY := getSolanaTokenTransferFeeConfig(t, env.Env, src, dst, state.SolChains[src].FeeQuoter, tokenAddressY)
 	require.Equal(t, tokenAddressY, solCfgY.Mint)
 	require.Equal(t, uint32(math.MaxUint32), solCfgY.TokenTransferConfig.MaxFeeUsdcents)
-	require.Equal(t, uint32(175_000), solCfgY.TokenTransferConfig.MinFeeUsdcents)
+	require.Equal(t, uint32(25), solCfgY.TokenTransferConfig.MinFeeUsdcents)
 	require.Equal(t, uint32(64), solCfgY.TokenTransferConfig.DestBytesOverhead)
 	require.Equal(t, uint32(10), solCfgY.TokenTransferConfig.DestGasOverhead)
 	require.Equal(t, uint16(0), solCfgY.TokenTransferConfig.DeciBps)

deployment/ccip/changeset/solana_v0_1_1/cs_billing.go

@@ -11,6 +11,7 @@ import (
 	ata "github.com/gagliardetto/solana-go/programs/associated-token-account"
 	"github.com/gagliardetto/solana-go/rpc"
 
+	chain_selectors "github.com/smartcontractkit/chain-selectors"
 	"github.com/smartcontractkit/mcms"
 	mcmsTypes "github.com/smartcontractkit/mcms/types"
 
@@ -817,8 +818,19 @@ func (cfg TokenTransferFeeForRemoteChainConfigV2) buildOrchestrateChangesetsConf
 				// if the config has not been set yet, we auto-fill any missing input fields with sensible defaults
 				env.Logger.Infof("current config = %+v", curConfig)
 				if !curConfig.TokenTransferConfig.IsEnabled {
+					// this config is dynamically adjusted (ethereum is very expensive)
+					minFeeUsdCentsVal := uint32(25)
+
+					// NOTE: we validate that src != dst so only one of these if statements will execute
+					if srcSelector == chain_selectors.ETHEREUM_MAINNET.Selector {
+						minFeeUsdCentsVal = 50
+					}
+					if dstSelector == chain_selectors.ETHEREUM_MAINNET.Selector {
+						minFeeUsdCentsVal = 150
+					}
+
 					// only use sensible defaults to fill in missing fields - do not overwrite anything that the user provided
-					minFeeUsdCents := pointer.Coalesce(feeConfig.MinFeeUsdcents, uint32(175_000))
+					minFeeUsdCents := pointer.Coalesce(feeConfig.MinFeeUsdcents, minFeeUsdCentsVal)
 					maxFeeUsdCents := pointer.Coalesce(feeConfig.MaxFeeUsdcents, math.MaxUint32)
 					destGasOverhead := pointer.Coalesce(feeConfig.DestGasOverhead, uint32(90_000))
 					destBytesOverhead := pointer.Coalesce(feeConfig.DestBytesOverhead, uint32(32))