refactor(test-tests): migrate amsterdam gas costs to use bytecode.gas_cost(fork)

[spencer-tb]

🗒️ Description

Migrate Amsterdam EIP-7928 block access list tests from manual fork.gas_costs() calculations to bytecode.gas_cost(fork).

This is a pure refactor with no functional change, all exact gas-boundary test fixtures produce identical output (verified via fixture hash comparison). The only difference is test_bal_noop_storage_write which uses a non-exact generous gas limit, the value changed but both old and new are sufficient for the test to pass.

The benefit is maintainability: tests now declare intent via opcode metadata (e.g., address_warm=False, value_transfer=True) and delegate gas calculation to the framework's opcode_gas_map(), so future gas schedule changes only need updating in one place.

The single remaining fork.gas_costs().G_CALL_STIPEND reference is intentional — it's a threshold check, not a gas cost.

🔗 Related Issues or PRs

Partially fixes #2049.

✅ Checklist

• All: Ran fast tox checks to avoid unnecessary CI fails, see also Code Standards and Enabling Pre-commit Checks:

  uvx tox -e static

• All: PR title adheres to the repo standard - it will be used as the squash commit message and should start type(scope):.
• All: Considered updating the online docs in the ./docs/ directory.
• All: Set appropriate labels for the changes (only maintainers can apply labels).

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.07%. Comparing base (1140c0e) to head (e588295).
⚠️ Report is 30 commits behind head on forks/amsterdam.

Additional details and impacted files

@@               Coverage Diff                @@
##           forks/amsterdam    #2186   +/-   ##
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  Coverage            86.07%   86.07%           
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  Files                  599      599           
  Lines                39472    39472           
  Branches              3780     3780           
================================================
  Hits                 33977    33977           
  Misses                4862     4862           
  Partials               633      633           

Flag	Coverage Δ
unittests	86.07% <ø> (ø)

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[fselmo]

lgtm @spencer-tb! I added a DRYing commit on top of this removing some Bytecode wrapping / duplication as we can add metadata inline and not repeat it. I saw @marioevz made some similar changes in the other refactoring PRs (e.g. #2191 (comment)).

I also re-checked the gas boundaries with traces and everything looks good after the refactor. Thanks for getting this in 🚀