Implement unified token adapter pattern for ERC-20, native Stellar, and wrapped tokens#542
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Implement unified token adapter pattern for ERC-20, native Stellar, and wrapped tokens#542pixels26 wants to merge 1 commit into
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…nd wrapped tokens This PR adds a unified token adapter system to `stellar-lend/contracts/lending` that supports ERC-20, native Stellar, and wrapped token interactions through a shared `TokenAdapterTrait`. Key changes: - Added `token_adapter.rs` with adapter trait, config, verification result, and persistent adapter registry keys. - Implemented `token_adapter_erc20.rs` using `TokenClient` for ERC-20 transfers, balances, allowance, approve, and transfer_from. - Implemented `token_adapter_native.rs` using `StellarAssetClient` for native transfers and balances, with native adapter validation. - Implemented `token_adapter_wrapped.rs` using `TokenClient` for wrapped token transfers, balances, and supply. - Added `token_adapter_verify.rs` to verify adapter configs, store adapter configurations persistently, and list registered adapters. - Updated `token_adapter.rs` factory registration to route through verification and persistent storage. The PR includes adapter registration and validation logic required for integration into the lending protocol. Close Smartdevs17#347
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This PR adds a unified token adapter system to
stellar-lend/contracts/lendingthat supports ERC-20, native Stellar, and wrapped token interactions through a sharedTokenAdapterTrait.Key changes:
token_adapter.rswith adapter trait, config, verification result, and persistent adapter registry keys.token_adapter_erc20.rsusingTokenClientfor ERC-20 transfers, balances, allowance, approve, and transfer_from.token_adapter_native.rsusingStellarAssetClientfor native transfers and balances, with native adapter validation.token_adapter_wrapped.rsusingTokenClientfor wrapped token transfers, balances, and supply.token_adapter_verify.rsto verify adapter configs, store adapter configurations persistently, and list registered adapters.token_adapter.rsfactory registration to route through verification and persistent storage.Close #347