starknet_os: os resources test - l1 handler tx constant factor

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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 👈 (View in Graphite)
• 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
• 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 and versioned-constants tuning for fee/OS resource accounting; no runtime auth or execution-path logic changes beyond updated constants used for charging.

Overview
Extends the OS execute_txs_inner regression test to cover L1 handler transactions alongside invoke, declare, and deploy-account. A minimal empty_l1_handler entry point is added on the OS resources test contract, and the flow test runs a fourth minimal L1-handler tx and derives pure OS scaffolding overhead (OS trace minus blockifier business logic) for that type.

The measured constant overhead for L1Handler in blockifier_versioned_constants_0_14_3.json is updated (n_steps 1315 → 1339, pedersen_builtin 11 → 12). The existing unscaled calldata-factor shape is asserted but not recomputed (TODO remains for the linear factor).

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