fix(test-fill): fix filling pre-Byzantium forks with geth

[felix314159]

🗒️ Description

Fixes compatibility with geth evm t8n for pre-Byzantium state tests. geth emits receipt JSON with a non-empty root field, and we were rebuilding those receipts as if status should take precedence, which caused receipt-root mismatches during fill. the parser now treats a non-empty geth JSON root as pre-Byzantium post_state and ignores status in that case, while preserving Byzantium-and-later behavior when root is empty.

Also added a few tests covering both pre-Byzantium (root) and Byzantium+ (status) receipt parsing behavior.

How to run

Before applying this PR u can run uv run fill --fork Frontier --evm-bin=/home/user/Documents/go-ethereum/build/bin/evm --clean tests/frontier/touch/test_touch.py::test_zero_gas_price_and_touching using latest geth master and one of the two tests will fail with a receipt-root mismatch. After applying the PR both tests pass (like they always would when filling with eels).

🔗 Related Issues or PRs

This fix was originally part of #2548 but was split into its own PR for cleaner commit history.

✅ 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).
• Tests: Ran mkdocs serve locally and verified the auto-generated docs for new tests in the Test Case Reference are correctly formatted.
• Tests: For PRs implementing a missed test case, update the post-mortem document to add an entry the list.
• Ported Tests: All converted JSON/YML tests from ethereum/tests or tests/static have been assigned @ported_from marker.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.35%. Comparing base (65a3009) to head (d28fcd1).
⚠️ Report is 1 commits behind head on forks/amsterdam.

Additional details and impacted files

@@               Coverage Diff                @@
##           forks/amsterdam    #2576   +/-   ##
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  Coverage            86.35%   86.35%           
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  Files                  599      599           
  Lines                36904    36904           
  Branches              3771     3771           
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  Hits                 31868    31868           
  Misses                4485     4485           
  Partials               551      551           

Flag	Coverage Δ
unittests	86.35% <ø> (ø)

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[spencer-tb]

LGTM! Thanks :)