feat: native wdk integration with ows

[njdawn]

Summary

Adds a WDK (Wallet Development Kit) adapter to @open-wallet-standard/adapters, following the same pattern as the existing viem and Solana adapters.

• owsToWdkAccount(walletNameOrId, chain, options) wraps an OWS wallet as a WDK-compatible IWalletAccount object
• Maps WDK chain names ("evm", "solana", "btc", "ton", "tron", "cosmos", "sui", "xrpl", "filecoin", "spark") to OWS CAIP-2 identifiers
• Signing delegated to OWS core — keys never leave the vault
• Available via subpath import: @open-wallet-standard/adapters/wdk

Usage

import { owsToWdkAccount } from '@open-wallet-standard/adapters/wdk';

const account = owsToWdkAccount('my-wallet', 'evm');

await account.getAddress();                    // "0x..."
await account.sign(Buffer.from('hello'));       // Uint8Array
await account.sendTransaction(txHex);           // tx hash

Files changed

• src/wdk.js — adapter implementation
• src/wdk.d.ts — TypeScript declarations (WdkCompatibleAccount, OwsWdkAccountOptions)
• __test__/wdk.spec.mjs — 12 tests (chain resolution, signing, OWS SDK parity, error cases)
• src/index.js / src/index.d.ts — re-exports
• package.json — ./wdk subpath export, @tetherto/wdk-wallet as optional peer dep

Test plan

• All 12 WDK adapter tests pass
• Existing viem (10) and Solana (6) tests unaffected — full suite 28/28
• Verify sign() output is usable with WDK protocol modules (swap, bridge, etc.)

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated (UTC)
ol-ows-docs	Ready	Preview	Apr 8, 2026 5:53pm

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