blockifier: raw VC serde equivalence test

[dorimedini-starkware]

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[reviewable-StarkWare]

This change is 

[dorimedini-starkware]

• blockifier_test_utils: add OS resources measurement contract #14126 : 2 dependent PRs (#14127 , #14128 )
• 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 👈 (View in Graphite)
• main

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Artifacts upload workflows:

• Started at 2026-05-24T06:50:42Z
• Started at 2026-05-24T10:15:05Z

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PR Summary

Low Risk
Changes are limited to test-only serialization/PartialEq derives and a new round-trip serde test; runtime behavior is unaffected outside test/testing builds.

Overview
Adds test-only serde round-trip coverage for versioned constants by reading each resources/*.json, deserializing into RawVersionedConstants, serializing back to JSON, and asserting the result re-deserializes to the same value.

To support this, expands #[cfg(test|testing)] derives to include Serialize/PartialEq on several raw VC structs/enums and adds custom serialization helpers (notably for VmResourceCosts.builtins and RawOsResources) so the pretty-printed JSON is stable and comparable in tests.

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[Yoni-Starkware]

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