server: Implement address blocking support

Steven Rooserequested to merge
blocklist into master

Refactoring this a bit and adding auto-refresh support.

Summary by CodeRabbit

  • New Features
    • Added Bitcoin address blocklist configuration for server deployments
    • Blocklist file (one address per line) blocks: board creation from listed addresses, offboarding to listed addresses, and receipt of funds from listed addresses into internal wallets
    • Automatic blocklist reloading from configuration file at runtime
Edited by coderabbit

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