Alexis Bruneteau 9b616f00ac fix: Use Docker service names in BlockchainClient for internal container communication
The backend container needs to reach validators using their Docker service names
(validator-1, validator-2, validator-3) instead of localhost:PORT.

This fixes the 'validators unreachable' warning on backend startup.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-07 16:19:05 +01:00
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