fix: gas price estimation cast send zk (#683)

* Fix gas price on cast paymaster usage

* Remove outdated comment

Author: Jrigada

crates/cast/bin/cmd/send.rs

@@ -144,7 +144,10 @@ impl SendTxArgs {
             None
         };
 
-        let config = Config::from(&eth);
+        let mut config = Config::from(&eth);
+        config.zksync.startup = zksync_params.zksync;
+        config.zksync.compile = zksync_params.zksync;
+
         let provider = utils::get_provider(&config)?;
 
         let builder = CastTxBuilder::new(&provider, tx, &config)

crates/cast/bin/tx.rs

@@ -154,7 +154,7 @@ where
 
         let chain = utils::get_chain(config.chain, &provider).await?;
         let etherscan_api_key = config.get_etherscan_api_key(Some(chain));
-        let legacy = tx_opts.legacy || chain.is_legacy();
+        let legacy = tx_opts.legacy || chain.is_legacy() || config.zksync.run_in_zk_mode();
 
         if let Some(gas_limit) = tx_opts.gas_limit {
             tx.set_gas_limit(gas_limit.to());
@@ -165,9 +165,7 @@ where
         }
 
         if let Some(gas_price) = tx_opts.gas_price {
-            // We need to set the gas price to be able to create the EIP-712 transaction in
-            // zkcontext
-            if legacy || config.zksync.startup {
+            if legacy {
                 tx.set_gas_price(gas_price.to());
             } else {
                 tx.set_max_fee_per_gas(gas_price.to());

crates/cast/tests/cli/main.rs

@@ -1400,9 +1400,7 @@ casttest!(cast_using_paymaster, async |prj, cmd| {
         "--zk-paymaster-input",
         "0x8c5a344500000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000",
         "--rpc-url",
-        &url,
-        "--gas-price",
-        "1000000000000002",
+        &url
     ])
     .assert_success();