feat: Shadow Accounts — cross-chain smart account presence via interop#2112

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valera-grinenko-ai wants to merge 9 commits intomatter-labs:draft-v32from

valera-grinenko-ai:shadow-accounts

Commits on Apr 3, 2026

feat: implement Shadow Accounts for cross-chain smart account presence

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claude
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fix: CI fixes — struct packing, selectors, zkstack-out, slither config

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Commits on Apr 4, 2026

chore: recompute hashes and zkstack-out with foundry-zksync v0.1.5

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claude
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fix: format shadow account errors with selectors via errors-lint

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fix: remove trailing blank line in InteropErrors.sol

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claude
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Commits on Apr 6, 2026

fix: update stale NatSpec, clean up InteropHandler routing, remove unused helper

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claude
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fix: cache owner hash, make predictAddress public, remove self-call

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test: add empty payload edge case test for ShadowAccount

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claude
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Commits on Apr 7, 2026

test: remove unnecessary mocks from shadow account tests

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claude
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