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 a new MonadFixtureConsumer (consume direct) into the EEST framework so blockchain fixtures can be executed against the production monad runloop via the eest-runner harness. It also adds a --monad-runloop filler flag that stamps consensus-derived header fields (prev_randao, gas_limit, extra_data, requests_hash) so filled block hashes and EIP-2935 history storage match what the runloop produces.

• MonadFixtureConsumer (clis/monad.py): digests fixtures into an eest-runner input document, provisions a fresh triedb (slot-encoded, page-encoded, or dual-timeline for transition forks), spawns the harness with container-lifecycle cleanup via PR_SET_PDEATHSIG + docker kill, and compares every post-state account and the final state root against the fixture.
• --monad-runloop filler option: stamps monad-specific header fields during fill and propagates a monad_runloop marker so tests that rely on a test-controlled gas limit (e.g. test_tx_gas_limit) can skip themselves gracefully.
• Fork cleanup: removes the unused PragueToMONAD_EIGHTAtTime15k transition fork and narrows the mip4 test to only the MONAD_NINE transition boundary.

Confidence Score: 5/5

Safe to merge; the new consumer, filler option, and workflow are self-contained and don't touch shared production paths.

The core MonadFixtureConsumer logic is carefully scoped: it only activates on MONAD_EIGHT+ fixture networks, cleans up Docker containers on every exit path, and compares results field-by-field. The --monad-runloop flag is opt-in and isolated from existing fill flows. The one non-blocking concern (no per-test harness timeout) is a reliability nit with no correctness impact.

packages/testing/src/execution_testing/client_clis/clis/monad.py — the communicate() call in _run_harness has no per-invocation timeout.

Important Files Changed

Filename	Overview
packages/testing/src/execution_testing/client_clis/clis/monad.py	New MonadFixtureConsumer: digests blockchain fixtures into eest-runner input, provisions triedb (with dual-timeline for transition forks), runs the harness in a subprocess with container-lifecycle cleanup, and compares post-state and state-root. Logic is correct; communicate() has no per-invocation timeout.
.github/workflows/consume_release.yaml	New workflow for consuming a fixtures release against a pinned monad stack; all user inputs are threaded through env vars rather than inline shell interpolation, and optional submodule overrides are handled via actions/checkout.
packages/testing/src/execution_testing/test_types/block_types.py	Adds MonadRunloopDefaults dataclass (consistent with EnvironmentDefaults pattern) with consensus-derived header constants: prev_randao (baked BLS-signature hash), gas_limit, and an enabled flag set at configure time.
packages/testing/src/execution_testing/specs/blockchain.py	Stamps monad blocks with runloop-conformant header fields (prev_randao, gas_limit, extra_data, requests_hash) when --monad-runloop is active; correctly resolves per-block fork so transition fixtures are covered.
packages/testing/src/execution_testing/cli/pytest_commands/plugins/filler/filler.py	Adds --monad-runloop pytest option and corresponding monad_runloop marker propagation in collection; also gates gas_limit override on the new option.
packages/testing/src/execution_testing/cli/pytest_commands/plugins/consume/releases.py	Adds monad-developers/execution-specs to SUPPORTED_REPOS and strips the tests- prefix from Monad release tag names when deriving the fixture asset filename; backward-compatible for Ethereum repos.
packages/testing/src/execution_testing/forks/forks/transition.py	Removes the unused PragueToMONAD_EIGHTAtTime15k transition fork; the test_p256verify_before_fork.py comment explains the downstream impact.
tests/frontier/validation/test_transaction.py	Adds a monad_runloop skip marker to test_tx_gas_limit because the monad runloop fixes every block to the proposal gas limit, making the over-limit tx scenario untestable.
tests/monad_nine/mip4_checkreservebalance/test_fork_transition.py	Removes subsequent_forks=True from valid_at_transition_to marker, scoping the test only to the exact MONAD_NINE transition rather than all subsequent forks.

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 JSON
    MonadFixtureConsumer->>MonadFixtureConsumer: skip if any expectException block
    MonadFixtureConsumer->>monad_mpt: --create (slot/page/dual triedb)
    alt transition fixture (slot+page)
        MonadFixtureConsumer->>monad_mpt: --activate-secondary
    end
    MonadFixtureConsumer->>MonadFixtureConsumer: write input.json (genesis alloc + blocks)
    MonadFixtureConsumer->>eest_runner: Popen(--input, --output, --ledger-dir, --db)
    eest_runner->>Docker: start runloop container (EEST_RUNNER_CONTAINER_NAME)
    eest_runner->>Docker: propose + finalize blocks via ledger sim
    Docker-->>eest_runner: execution results
    eest_runner-->>MonadFixtureConsumer: output.json (post_state, state_root)
    MonadFixtureConsumer->>MonadFixtureConsumer: compare post_state accounts
    MonadFixtureConsumer->>MonadFixtureConsumer: compare state_root vs last blockHeader
    MonadFixtureConsumer-->>pytest: pass / raise Exception(mismatches)

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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 JSON
    MonadFixtureConsumer->>MonadFixtureConsumer: skip if any expectException block
    MonadFixtureConsumer->>monad_mpt: --create (slot/page/dual triedb)
    alt transition fixture (slot+page)
        MonadFixtureConsumer->>monad_mpt: --activate-secondary
    end
    MonadFixtureConsumer->>MonadFixtureConsumer: write input.json (genesis alloc + blocks)
    MonadFixtureConsumer->>eest_runner: Popen(--input, --output, --ledger-dir, --db)
    eest_runner->>Docker: start runloop container (EEST_RUNNER_CONTAINER_NAME)
    eest_runner->>Docker: propose + finalize blocks via ledger sim
    Docker-->>eest_runner: execution results
    eest_runner-->>MonadFixtureConsumer: output.json (post_state, state_root)
    MonadFixtureConsumer->>MonadFixtureConsumer: compare post_state accounts
    MonadFixtureConsumer->>MonadFixtureConsumer: compare state_root vs last blockHeader
    MonadFixtureConsumer-->>pytest: pass / raise Exception(mismatches)

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_{Reviews (5): Last reviewed commit: "chore(ci): Use monad-eest-rust-harness a..." | Re-trigger Greptile}

[QEDK]

LGTM.

[pdobacz]

Tacked on last commit to not point to execute-with-eestnet branches here and in monad-eest-rust-harness, as they will no longer exist after the merges.

Will merge once CI clears