feature: add signet-cold-mdbx crate with MDBX table definitions#4
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Introduces a new crate for cold storage MDBX tables with 8 tables: - Primary data: ColdHeaders, ColdTransactions, ColdReceipts, ColdSignetEvents, ColdZenithHeaders - Index: ColdBlockHashIndex, ColdTxHashIndex - Metadata: ColdMetadata with MetadataKey enum Also adds: - TxLocation type in signet-storage-types for transaction location indexing - KeySer/ValSer implementations for cold storage types in signet-hot Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements the ColdStorage trait using MDBX as the backend. Includes proper feature flagging with `backend` and `test-utils` features. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add `impl From<MdbxColdError> for ColdStorageError` to enable automatic error conversion via the `?` operator. Refactor backend methods to use internal helpers returning `MdbxColdError`, eliminating ~90 repetitive `.map_err(ColdStorageError::backend)` calls. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Extract specifier resolution into dedicated methods (resolve_header_spec, resolve_tx_spec, resolve_receipt_spec) - Replace large match blocks with function invocations - Use iterator collection patterns to avoid manual loop allocation - Simplify table creation with a loop over table metadata - Use scoped blocks to manage cursor lifetimes in truncate_above_inner Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Remove the optional `backend` feature and make both `signet-hot-mdbx` and `signet-cold` required dependencies. The backend implementation is now always available. Gate conformance test behind `test-utils` feature since it requires `signet_cold::conformance`. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
signet-cold-mdbxcrate with MDBX table definitions for cold storageTxLocationtype insignet-storage-typesfor transaction location indexing (16-byte fixed-size struct)KeySer/ValSerserialization implementations for cold storage types insignet-hotTest plan
cargo build -p signet-cold-mdbxcompiles successfullycargo test -p signet-cold-mdbxpasses (8 tests)cargo test -p signet-hotpasses (including cold_impls serialization tests)🤖 Generated with Claude Code