starknet_os: os resources test - add replace_class

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[dorimedini-starkware]

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• starknet_os: os resources test - add send_message_to_l1 #14143 : 2 dependent PRs (#14144 , #14153 )
• starknet_os: os resources test - add replace_class #14142 👈 (View in Graphite)
• 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 - library call #14129
• starknet_os: initial test, measure call contract resources #14128
• blockifier_test_utils: add option to deploy from zero in test accounts #14258
• starknet_os_flow_tests: helper function to declare explicit classes #14257
• starknet_os: os resources test - create fixed deployable account #14173
• main

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PR Summary

Medium Risk
Changes syscall gas constants, blockifier OS resource tables, and the Starknet OS program hash, which affect fee accounting and OS compatibility; scope is narrow to ReplaceClass and test infrastructure.

Overview
This PR brings ReplaceClass syscall costs in line with measured OS resources and folds the syscall into the OS resources regression harness.

ReplaceClass gas in OS constants drops from 10670 to 10000, and blockifier 0.14.4 ReplaceClass VM resources go from 106 to 92 steps. program_hash.json updates the main OS hash to match the rebuilt program.

The Cairo1 os resources test contract now invokes replace_class_syscall during __execute__, and os_resources_test removes ReplaceClass from UNMEASURABLE_SYSCALLS so measured overhead is compared against versioned constants like other syscalls.

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