/**
 * Tests for `deriveVaultRoot` — the SDK helper that wires a wallet's
 * `deriveContextHash` API to the canonical `vaultContext` encoding.
 *
 * The helper is a thin pass-through; tests pin the wiring contract:
 *  - Forwards the hardcoded `appName` "babylon-btc-vault" verbatim.
 *  - Forwards the hex of the 72-byte `vaultContext` (lowercase, 144 chars).
 *  - Decodes the wallet's 64-char hex output to 32 bytes.
 *  - Rejects malformed wallet output (wrong length / non-hex / uppercase).
 *  - Propagates wallet errors unchanged (user rejection, not-supported, etc.).
 */
export {};
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