starknet_os_flow_tests: helper function to declare explicit classes

[dorimedini-starkware]

No description provided.

[dorimedini-starkware]

• 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
• 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 👈 (View in Graphite)
• starknet_os: os resources test - create fixed deployable account #14173
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[reviewable-StarkWare]

This change is 

[cursor]

PR Summary

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

Overview
Adds TestBuilder::add_explicit_cairo1_declare_tx, which builds a Cairo 1 declare from Sierra + CASM (class/compiled hashes, ClassInfo, DeclareTransaction::create) and forwards to add_cairo1_declare_tx.

test_v1_bound_accounts_cairo1 and test_data_gas_accounts now call that helper instead of repeating the same declare boilerplate; imports in test_manager.rs are adjusted to match.

^{Reviewed by Cursor Bugbot for commit 47fc472. Bugbot is set up for automated code reviews on this repo. Configure here.}

[yoavGrs]

@yoavGrs reviewed 2 files and all commit messages, and made 1 comment.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on Yoni-Starkware).