starknet_os: os resources test - extract setup_test_builder

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• starknet_os: os resources test - l1 handler tx calldata factor #14152
• starknet_os: os resources test - deploy account tx calldata factor #14151
• starknet_os: os resources test - invoke tx calldata factor #14150
• starknet_os: os resources test - l1 handler tx constant factor #14149
• starknet_os: os resources test - deploy account tx constant factor #14148
• starknet_os: os resources test - declare tx #14147
• starknet_os: os resources test - invoke tx constant factor #14146
• starknet_os: os resources test - extract setup_test_builder #14145 👈 (View in Graphite)
• starknet_os: os resources test - add secp syscalls #14144
• starknet_os: os resources test - add send_message_to_l1 #14143 : 1 other dependent PR (#14153 )
• starknet_os: os resources test - add replace_class #14142
• starknet_os: os resources test - support virtual builtins, add sha256 #14141
• starknet_os: define sha256 batch resources constants #14140
• starknet_os: os resources test - add keccak #14139
• starknet_os: os resources test - add 3 more syscalls #14138
• starknet_os: os resources test - remove all fee transfer syscalls #14137
• starknet_os: os resources test - add emit event #14136
• starknet_os: os resources test - add meta tx #14135
• starknet_os: os resources test - measure linear factor, add deploy #14134
• starknet_os: os resources test - create fixed deployable account #14173
• starknet_os: os resources test - library call #14129
• starknet_os: initial test, measure call contract resources #14128
• blockifier_test_utils: add OS resources measurement contract #14126 : 1 other dependent PR (#14127 )
• blockifier: regenerate VC JSONs #14133
• blockifier: raw VC to_string_pretty #14132
• blockifier: raw VC deterministic map order #14131
• blockifier: raw VC serde equivalence test #14130
• main

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PR Summary

Low Risk
Test-only refactor in flow tests; no production OS or blockifier behavior changes.

Overview
Pulls shared OS-resources test harness setup into setup_test_builder, so both test_fee_transfer_syscalls and test_os_resources_regression use the same path instead of duplicating (or diverging on) builder creation.

The helper centralizes deploying and funding the OS-resources account, bumping min_sierra_version_for_sierra_gas to force step-tracking mode, declaring the deployable measurement class, and advancing a block so measurement transactions sit alone. test_fee_transfer_syscalls now calls this helper (replacing TestBuilder::create_standard) and only adds its invoke plus syscall assertions; the regression test drops its inlined copy of that setup. Imports add ClassHash and ContractAddress for the helper’s return type.

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