blockifier_test_utils: remove committed Cairo 1 compiled artifacts

[Yoni-Starkware]

Summary

• Delete 32 generated JSON files (~164K lines) from feature_contracts/cairo1/compiled/ and feature_contracts/cairo1/sierra/
• Add .gitignore entries to prevent re-committing Cairo 1 artifacts
• Remove Cairo 1 -diff entries from .gitattributes (no longer needed)

This is part 3/3 of the Cairo 1 on-demand compilation stack. After PR 2, these files are unused — this PR is pure cleanup.

Test plan

• git grep confirms no remaining references to the deleted file paths
• All tests pass (artifacts are generated on-demand by the compilation cache)

Made with Cursor

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Note

Low Risk
Low risk cleanup: removes generated Cairo 1 JSON artifacts and updates ignore/diff settings; runtime behavior should be unchanged as artifacts are now generated on-demand.

Overview
Removes previously committed Cairo 1 generated artifacts (.casm.json and .sierra.json) from blockifier_test_utils feature contract resources, leaving only directory placeholders.

Updates repo hygiene so these artifacts are no longer treated specially in diffs and cannot be re-committed: drops the Cairo 1 -diff rules from .gitattributes and adds .gitignore entries for the Cairo 1 compiled/ and sierra/ JSON outputs.

^{Written by Cursor Bugbot for commit de063fc. This will update automatically on new commits. Configure here.}

[reviewable-StarkWare]

This change is 

[dorimedini-starkware]

@dorimedini-starkware reviewed 36 files and all commit messages, and made 1 comment.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on Yoni-Starkware).

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.gitignore line 60 at r1 (raw file):

# Cairo 1 compiled artifacts (generated on-demand, cached in target/).
crates/blockifier_test_utils/resources/feature_contracts/cairo1/compiled/*.json
crates/blockifier_test_utils/resources/feature_contracts/cairo1/sierra/*.json

non-blocking

Suggestion:

# Cairo 1 compiled artifacts (deprecated, generated on-demand, cached in target/).
crates/blockifier_test_utils/resources/feature_contracts/cairo1/compiled/*.json
crates/blockifier_test_utils/resources/feature_contracts/cairo1/sierra/*.json

[dorimedini-starkware]

@dorimedini-starkware reviewed 2 files and all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on Yoni-Starkware).

[github-actions]

Artifacts upload workflows:

• Started at 2026-03-11T11:22:57Z

[Yoni-Starkware]

@Yoni-Starkware reviewed 36 files and all commit messages, and resolved 1 discussion.
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[Yoni-Starkware]

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[dorimedini-starkware]

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[Yoni-Starkware]

@Yoni-Starkware reviewed 4 files and all commit messages.
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[dorimedini-starkware]

@dorimedini-starkware reviewed 4 files and all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on Yoni-Starkware).

[dorimedini-starkware]

@dorimedini-starkware reviewed 1 file and all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on Yoni-Starkware).