fix(api): batch fee input scaling for debug_traceCall (#3344)

## What ❔

Changes the `debug_traceCall` handler to use gas price factor instead of
plain gas factor.

Additionally removes entrypoints into `get_batch_fee_input_scaled` with
default scaling factor (1.0)

## Why ❔

Previously, `debug_traceCall` was using incorrect gas scaling factor

## Checklist

<!-- Check your PR fulfills the following items. -->
<!-- For draft PRs check the boxes as you complete them. -->

- [x] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [x] Tests for the changes have been added / updated.
- [x] Documentation comments have been added / updated.
- [x] Code has been formatted via `zkstack dev fmt` and `zkstack dev
lint`.

core/lib/config/src/configs/api.rs

@@ -243,7 +243,7 @@ impl Web3JsonRpcConfig {
             pubsub_polling_interval: Some(200),
             max_nonce_ahead: 50,
             gas_price_scale_factor: 1.2,
-            estimate_gas_scale_factor: 1.2,
+            estimate_gas_scale_factor: 1.5,
             estimate_gas_acceptable_overestimation: 1000,
             estimate_gas_optimize_search: false,
             max_tx_size: 1000000,

core/node/api_server/src/tx_sender/mod.rs

@@ -588,7 +588,7 @@ impl TxSender {
     }
 
     // For now, both L1 gas price and pubdata price are scaled with the same coefficient
-    async fn scaled_batch_fee_input(&self) -> anyhow::Result<BatchFeeInput> {
+    pub(crate) async fn scaled_batch_fee_input(&self) -> anyhow::Result<BatchFeeInput> {
         self.0
             .batch_fee_input_provider
             .get_batch_fee_input_scaled(

core/node/api_server/src/tx_sender/tests/send_tx.rs

@@ -6,7 +6,7 @@ use assert_matches::assert_matches;
 use chrono::NaiveDateTime;
 use test_casing::test_casing;
 use zksync_multivm::interface::{tracer::ValidationTraces, ExecutionResult};
-use zksync_node_fee_model::MockBatchFeeParamsProvider;
+use zksync_node_fee_model::{BatchFeeModelInputProvider, MockBatchFeeParamsProvider};
 use zksync_node_test_utils::create_l2_transaction;
 use zksync_types::K256PrivateKey;
 
@@ -22,10 +22,9 @@ async fn submitting_tx_requires_one_connection() {
         .unwrap();
 
     let l2_chain_id = L2ChainId::default();
-    let fee_input = MockBatchFeeParamsProvider::default()
-        .get_batch_fee_input_scaled(1.0, 1.0)
-        .await
-        .unwrap();
+    let fee_params_provider: &dyn BatchFeeModelInputProvider =
+        &MockBatchFeeParamsProvider::default();
+    let fee_input = fee_params_provider.get_batch_fee_input().await.unwrap();
     let (base_fee, gas_per_pubdata) =
         derive_base_fee_and_gas_per_pubdata(fee_input, ProtocolVersionId::latest().into());
     let tx = create_l2_transaction(base_fee, gas_per_pubdata);
@@ -130,10 +129,9 @@ async fn fee_validation_errors() {
     let l2_chain_id = L2ChainId::default();
     let tx_executor = SandboxExecutor::mock(MockOneshotExecutor::default()).await;
     let (tx_sender, _) = create_test_tx_sender(pool.clone(), l2_chain_id, tx_executor).await;
-    let fee_input = MockBatchFeeParamsProvider::default()
-        .get_batch_fee_input_scaled(1.0, 1.0)
-        .await
-        .unwrap();
+    let fee_params_provider: &dyn BatchFeeModelInputProvider =
+        &MockBatchFeeParamsProvider::default();
+    let fee_input = fee_params_provider.get_batch_fee_input().await.unwrap();
     let (base_fee, gas_per_pubdata) =
         derive_base_fee_and_gas_per_pubdata(fee_input, ProtocolVersionId::latest().into());
     let tx = create_l2_transaction(base_fee, gas_per_pubdata);
@@ -322,10 +320,9 @@ async fn submit_tx_with_validation_traces(actual_range: Range<u64>, expected_ran
         .unwrap();
 
     let l2_chain_id = L2ChainId::default();
-    let fee_input = MockBatchFeeParamsProvider::default()
-        .get_batch_fee_input_scaled(1.0, 1.0)
-        .await
-        .unwrap();
+    let fee_params_provider: &dyn BatchFeeModelInputProvider =
+        &MockBatchFeeParamsProvider::default();
+    let fee_input = fee_params_provider.get_batch_fee_input().await.unwrap();
     let (base_fee, gas_per_pubdata) =
         derive_base_fee_and_gas_per_pubdata(fee_input, ProtocolVersionId::latest().into());
     let tx = create_l2_transaction(base_fee, gas_per_pubdata);

core/node/api_server/src/web3/namespaces/debug.rs

@@ -244,12 +244,7 @@ impl DebugNamespace {
             // It is important to drop a DB connection before calling the provider, since it acquires a connection internally
             // on the main node.
             drop(connection);
-            let scale_factor = self.state.api_config.estimate_gas_scale_factor;
-            let fee_input_provider = &self.state.tx_sender.0.batch_fee_input_provider;
-            // For now, the same scaling is used for both the L1 gas price and the pubdata price
-            fee_input_provider
-                .get_batch_fee_input_scaled(scale_factor, scale_factor)
-                .await?
+            self.state.tx_sender.scaled_batch_fee_input().await?
         } else {
             let fee_input = block_args.historical_fee_input(&mut connection).await?;
             drop(connection);