Prepare transactions before submitting

[nerfZael]

This PR separates sending transactions into 2 steps: preparing and sending

[nerfZael]

/workflows/benchmarks agents/token/send 3

[github-actions[bot]]

Finished benchmarks Download artifacts

Test Run Summary

• Run from: ./autotx/tests/agents/token/send
• Base path: autotx/tests/agents/token/send/test_send.py::
• Iterations: 3
• Total Cost: $0.10
• Total Success Rate (%): ${\color{none} \LARGE \texttt {100.00} \large \texttt {} }$

Detailed Results

Test Name	Success Rate (%)	Passes	Fails	Avg Time	Avg Cost
test_send_erc20	${\color{none} \large \texttt {100} \normalsize \texttt {} }$	${\color{none} \large \texttt {3}}$	${\color{none} \large \texttt {0}}$	28s	$0.00
test_send_erc20_parallel	${\color{none} \large \texttt {100} \normalsize \texttt {} }$	${\color{none} \large \texttt {3}}$	${\color{none} \large \texttt {0}}$	26s	$0.01
test_send_eth_multiple	${\color{none} \large \texttt {100} \normalsize \texttt {} }$	${\color{none} \large \texttt {3}}$	${\color{none} \large \texttt {0}}$	35s	$0.01
test_send_native	${\color{none} \large \texttt {100} \normalsize \texttt {} }$	${\color{none} \large \texttt {3}}$	${\color{none} \large \texttt {0}}$	21s	$0.00
test_send_native_sequential	${\color{none} \large \texttt {100} \normalsize \texttt {} }$	${\color{none} \large \texttt {3}}$	${\color{none} \large \texttt {0}}$	21s	$0.01

Total run time: 6.52 minutes