Adds Hedera Testnet config

core/chains/evm/config/toml/defaults/Hedera_Testnet.toml

@@ -0,0 +1,17 @@
+ChainID = '296'
+#considering the 3-5 (6 including a buffer) seconds of finality and 2 seconds block production
+#we set the depth to 6/2 = 3 blocks
+FinalityDepth = 3
+# same as block production rate
+LogPollInterval = '2s'
+MinIncomingConfirmations = 1
+NoNewHeadsThreshold = '30s'
+# 5 since thats our consideration for finality depth & 10s exposure to api so we can always get the final blocks
+RPCBlockQueryDelay = 5
+
+[BalanceMonitor]
+Enabled = true
+
+[GasEstimator]
+# TODO: check this, this may not prove effective since we dont have mempool and cannot use market rates to 
+BumpThreshold = 5

docs/CONFIG.md

@@ -3430,6 +3430,90 @@ GasLimit = 5400000
 
 </p></details>
 
+<details><summary>Hedera Testnet (296)</summary><p>
+
+```toml
+AutoCreateKey = true
+BlockBackfillDepth = 10
+BlockBackfillSkip = false
+FinalityDepth = 3
+FinalityTagEnabled = false
+LogBackfillBatchSize = 1000
+LogPollInterval = '2s'
+LogKeepBlocksDepth = 100000
+LogPrunePageSize = 0
+BackupLogPollerBlockDelay = 100
+MinIncomingConfirmations = 1
+MinContractPayment = '0.00001 link'
+NonceAutoSync = true
+NoNewHeadsThreshold = '30s'
+RPCDefaultBatchSize = 250
+RPCBlockQueryDelay = 5
+
+[Transactions]
+ForwardersEnabled = false
+MaxInFlight = 16
+MaxQueued = 250
+ReaperInterval = '1h0m0s'
+ReaperThreshold = '168h0m0s'
+ResendAfterThreshold = '1m0s'
+
+[BalanceMonitor]
+Enabled = true
+
+[GasEstimator]
+Mode = 'BlockHistory'
+PriceDefault = '20 gwei'
+PriceMax = '115792089237316195423570985008687907853269984665.640564039457584007913129639935 tether'
+PriceMin = '1 gwei'
+LimitDefault = 500000
+LimitMax = 500000
+LimitMultiplier = '1'
+LimitTransfer = 21000
+BumpMin = '5 gwei'
+BumpPercent = 20
+BumpThreshold = 5
+EIP1559DynamicFees = false
+FeeCapDefault = '100 gwei'
+TipCapDefault = '1 wei'
+TipCapMin = '1 wei'
+
+[GasEstimator.BlockHistory]
+BatchSize = 25
+BlockHistorySize = 8
+CheckInclusionBlocks = 12
+CheckInclusionPercentile = 90
+TransactionPercentile = 60
+
+[HeadTracker]
+HistoryDepth = 100
+MaxBufferSize = 3
+SamplingInterval = '1s'
+
+[NodePool]
+PollFailureThreshold = 5
+PollInterval = '10s'
+SelectionMode = 'HighestHead'
+SyncThreshold = 5
+LeaseDuration = '0s'
+NodeIsSyncingEnabled = false
+FinalizedBlockPollInterval = '5s'
+
+[OCR]
+ContractConfirmations = 4
+ContractTransmitterTransmitTimeout = '10s'
+DatabaseTimeout = '10s'
+DeltaCOverride = '168h0m0s'
+DeltaCJitterOverride = '1h0m0s'
+ObservationGracePeriod = '1s'
+
+[OCR2]
+[OCR2.Automation]
+GasLimit = 5400000
+```
+
+</p></details>
+
 <details><summary>zkSync Sepolia (300)</summary><p>
 
 ```toml