feat(consume): Consume tests with runloop monad

[pdobacz]

Adds a consume direct test consumer enabling execution of spec test fixtures against a more production-like environment of monad execution client.

Currently there are 3 main use cases for this setup:

1. Run all spec tests in a slower but more production-like environment (than monad-ethereum-test executable)
2. Enable running fork transition tests (for MIP-8 specifically, but generally too)
3. Enable running preliminary performance regression tests for MIP-8

Requires https://github.com/monad-exp/monad-eest-rust-harness/pull/1

Greptile Summary

This PR wires MonadFixtureConsumer into consume direct, enabling blockchain fixtures to be executed against the production monad runloop via the eest-runner harness. It also adds a --monad-runloop fill flag that stamps consensus-derived header fields (prev_randao, gas_limit, extra_data, requests_hash) onto monad blocks so filled hashes match what the harness expects.

• New clis/monad.py: digests fixtures into harness input documents, provisions slot/page-encoded triedbs (with dual-timeline setup for fork-transition fixtures), drives eest-runner as a subprocess with container-kill teardown on interrupt, and verifies postState accounts plus the final state_root.
• New consume_release.yaml workflow: manually triggers a full fixture-release run against a pinned monad stack with optional submodule overrides for monad-bft and monad-execution.
• Removes the unused PragueToMONAD_EIGHTAtTime15k transition fork and drops subsequent_forks=True from test_fork_transition.py; adds a @pytest.mark.monad_runloop skip for test_tx_gas_limit.

Confidence Score: 5/5

Safe to merge; the new consumer is well-scoped and the CI workflow uses env-var interpolation for user inputs throughout the main test step.

All findings are minor edge cases with no impact on normal execution paths. The core fixture digestion, triedb provisioning, subprocess teardown, and post-state comparison logic are all straightforward and correctly implemented.

No files require special attention; the two minor issues are both in clis/monad.py.

Important Files Changed

Filename	Overview
packages/testing/src/execution_testing/client_clis/clis/monad.py	New MonadFixtureConsumer: digests blockchain fixtures into harness input, manages triedb setup, runs eest-runner subprocess with container-kill teardown, and verifies post-state + state root.
.github/workflows/consume_release.yaml	New manually-triggered workflow to run a fixture release against a pinned monad stack. Inputs that affect shell commands are properly routed through env vars.
packages/testing/src/execution_testing/specs/blockchain.py	Stamps consensus-derived header fields onto monad blocks when --monad-runloop is active; applies at both genesis and per-block with fork resolution covering transition forks.
packages/testing/src/execution_testing/test_types/block_types.py	Adds MonadRunloopDefaults as a @DataClass with class-level defaults consistent with EnvironmentDefaults pattern.
packages/testing/src/execution_testing/forks/forks/transition.py	Removes the unused PragueToMONAD_EIGHTAtTime15k transition fork.

Sequence Diagram

%%{init: {'theme': 'neutral'}}%%
sequenceDiagram
    participant pytest
    participant MonadFixtureConsumer
    participant monad_mpt
    participant eest_runner
    participant docker

    pytest->>MonadFixtureConsumer: consume_fixture(fixture_path)
    MonadFixtureConsumer->>MonadFixtureConsumer: load + validate fixture
    MonadFixtureConsumer->>monad_mpt: --create primary triedb
    alt transition fixture
        MonadFixtureConsumer->>monad_mpt: --activate-secondary
    end
    MonadFixtureConsumer->>eest_runner: Popen(--input, --output, --ledger-dir, --db)
    eest_runner-->>MonadFixtureConsumer: stdout, stderr, returncode
    alt "returncode != 0"
        MonadFixtureConsumer->>docker: kill container
        MonadFixtureConsumer-->>pytest: raise Exception
    end
    MonadFixtureConsumer->>MonadFixtureConsumer: compare postState + state_root
    alt mismatches
        MonadFixtureConsumer-->>pytest: raise Exception
    end

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sequenceDiagram
    participant pytest
    participant MonadFixtureConsumer
    participant monad_mpt
    participant eest_runner
    participant docker

    pytest->>MonadFixtureConsumer: consume_fixture(fixture_path)
    MonadFixtureConsumer->>MonadFixtureConsumer: load + validate fixture
    MonadFixtureConsumer->>monad_mpt: --create primary triedb
    alt transition fixture
        MonadFixtureConsumer->>monad_mpt: --activate-secondary
    end
    MonadFixtureConsumer->>eest_runner: Popen(--input, --output, --ledger-dir, --db)
    eest_runner-->>MonadFixtureConsumer: stdout, stderr, returncode
    alt "returncode != 0"
        MonadFixtureConsumer->>docker: kill container
        MonadFixtureConsumer-->>pytest: raise Exception
    end
    MonadFixtureConsumer->>MonadFixtureConsumer: compare postState + state_root
    alt mismatches
        MonadFixtureConsumer-->>pytest: raise Exception
    end

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