feat(testutil/validatormock): port Charon validatormock to Rust#418

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bohdan/validatormock-foundation

Commits on May 14, 2026

feat(testutil): add beaconmock baseline
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refactor(testutil): split beaconmock into directory module
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feat(testutil/beaconmock): port head producer, attestation store, options, fuzzer
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test(testutil/beaconmock): port go beaconmock tests
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feat(testutil/beaconmock): embed static.json baseline + build-time validation
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test(testutil/beaconmock): port golden fixtures + fix epoch-0 wraparound
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feat: add ralph loop-based improver
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fix(testutil/beaconmock): match Go ValidatorSetA zero exit/withdrawable epochs
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fix(testutil/beaconmock): publish initial head before spawn returns; use CancellationToken
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fix(testutil/beaconmock): document RNG divergence and mirror Charon's duty-root typo
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fix(testutil/beaconmock): use checked_add for next_tick fallback path
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chore(testutil/beaconmock): formatter reflow + Cargo.lock for tokio-util dep
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fix(testutil/beaconmock): filter inactive validators from proposer duties
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refactor(testutil/beaconmock): dedupe hex_0x helper
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refactor(testutil/beaconmock): hoist last_path_segment_u64 helper
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refactor(testutil/beaconmock): replace dead fallback branches with expect
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Commits on May 15, 2026