v0.17.0-beta1: Complete C++23 Modernization with Automatic Wallet Mig…

…ration

Goldcoin Core v0.16.0 - Stable Release

  Includes critical compatibility fixes:
  - Boost 1.83+ segfault prevention
  - GCC 13+ support
  - Qt 5.15+ compatibility
  - C++14 standard support

  This release has been tested and verified to work with modern toolchains.

Update bitcoin_ru.ts

Replace 'bitcoins' with 'goldcoins' in translated texts.