fix typescript types everywhere, delete pool.js and refactor relay.js to use event listeners everywhere.

nip06.ts

@@ -0,0 +1,26 @@
+import {wordlist} from '@scure/bip39/wordlists/english.js'
+import {
+  generateMnemonic,
+  mnemonicToSeedSync,
+  validateMnemonic
+} from '@scure/bip39'
+import {HDKey} from '@scure/bip32'
+
+export function privateKeyFromSeed(seed: string): string {
+  let root = HDKey.fromMasterSeed(Buffer.from(seed, 'hex'))
+  let privateKey = root.derive(`m/44'/1237'/0'/0/0`).privateKey
+  if (!privateKey) throw new Error('could not derive private key')
+  return Buffer.from(privateKey).toString('hex')
+}
+
+export function seedFromWords(mnemonic: string): string {
+  return Buffer.from(mnemonicToSeedSync(mnemonic)).toString('hex')
+}
+
+export function generateSeedWords(): string {
+  return generateMnemonic(wordlist)
+}
+
+export function validateWords(words: string): boolean {
+  return validateMnemonic(words, wordlist)
+}