Перенести server UI в shine-UI и объединить PDA-модуль

shine-UI/js/services/crypto-utils.js

@@ -52,6 +52,34 @@ export function bytesToBase58(bytes) {
   return digits.reverse().map((digit) => BASE58_ALPHABET[digit]).join('');
 }
 
+export function base58ToBytes(value) {
+  const text = String(value || '').trim();
+  if (!text) return new Uint8Array();
+
+  const digits = [];
+  for (let i = 0; i < text.length; i += 1) {
+    const char = text[i];
+    const index = BASE58_ALPHABET.indexOf(char);
+    if (index < 0) throw new Error(`Недопустимый символ base58: ${char}`);
+    let carry = index;
+    for (let j = 0; j < digits.length; j += 1) {
+      const acc = (digits[j] * 58) + carry;
+      digits[j] = acc & 0xff;
+      carry = acc >> 8;
+    }
+    while (carry > 0) {
+      digits.push(carry & 0xff);
+      carry >>= 8;
+    }
+  }
+
+  for (let i = 0; i < text.length && text[i] === '1'; i += 1) {
+    digits.push(0);
+  }
+
+  return new Uint8Array(digits.reverse());
+}
+
 export function randomBase64(byteLen = 32) {
   const bytes = getCryptoApi().getRandomValues(new Uint8Array(byteLen));
   return bytesToBase64(bytes);