build(deps): adopt lnurlcash-kit 0.8 contracts

src/lnurlcash/mintContract.v08.cases.ts

@@ -0,0 +1,43 @@
+// The wallet's deterministic-secret and signed-output work depends on this
+// exact installed API surface, so package drift must fail before funds code runs.
+
+import {describe, expect, it} from 'vitest'
+import {
+  cashNodeFromHex,
+  cashNodeToHex,
+  cashSecretSource,
+  deriveCashRoot,
+  restoreFromSeed,
+  verifyNoteSignature,
+  verifyNoteSignatureAgainst,
+  verifyNoteSignatureHash,
+  verifyNoteSignatureHashAgainst,
+} from 'lnurlcash-kit'
+import type {LnurlcashOptions} from 'lnurlcash-kit'
+import conformancePackage from '../../node_modules/lnurlcash-conformance/package.json'
+import kitPackage from '../../node_modules/lnurlcash-kit/package.json'
+
+const retryOptions = {mutationRetries: 1} satisfies LnurlcashOptions
+const requiredExports = [
+  deriveCashRoot,
+  cashNodeToHex,
+  cashNodeFromHex,
+  cashSecretSource,
+  restoreFromSeed,
+  verifyNoteSignature,
+  verifyNoteSignatureAgainst,
+  verifyNoteSignatureHash,
+  verifyNoteSignatureHashAgainst,
+] as const
+
+describe('lnurlcash 0.8 dependency contract', () => {
+  it('exposes the BIP-32, recovery, signature, and retry contracts', () => {
+    expect(requiredExports.every((value) => typeof value === 'function')).toBe(true)
+    expect(retryOptions.mutationRetries).toBe(1)
+  })
+
+  it('runs against the exact installed package versions', () => {
+    expect(kitPackage.version).toBe('0.8.0')
+    expect(conformancePackage.version).toBe('0.7.0')
+  })
+})