LibreNostr v0.6.0

Added

• Built-in Tor powered by Arti, bundled for arm64-v8a, so Tor can run inside LibreNostr without
  installing another app.
• Tor settings now show the built-in engine state and bootstrap progress, alongside the existing
  Orbot engine.

Changed

• Network routing now offers Direct, Tor for everything, and Only .onion addresses modes.
• Relay WebSockets, HTTP requests, media, uploads, and web pages follow the selected network mode;
  switching modes reconnects relay sockets through the new route.
• .onion relay addresses are accepted as cleartext WebSockets only when they are routed through
  Tor.

Fixed

• Traffic that cannot be routed through the selected Tor mode is no longer silently fetched directly.
• Strict Tor mode fails closed when Tor is unavailable instead of falling back to a direct connection.