- Introduced a comprehensive build system that supports multiple platforms (Linux, macOS, Windows, Android) using pure Go builds (`CGO_ENABLED=0`).
- Updated all build and test scripts to ensure compatibility with the new purego approach, allowing for dynamic loading of `libsecp256k1` at runtime.
- Added detailed documentation on the build process, platform detection, and deployment options.
- Enhanced CI/CD workflows to automate builds for all supported platforms and include necessary libraries in releases.
- Updated `.gitignore` to exclude build output files.
- Created new documentation files for deployment and multi-platform build summaries.
- Introduced a new `sync` package for managing NIP-11 relay information and relay group configurations.
- Implemented a cache for NIP-11 documents, allowing retrieval of relay public keys and authoritative configurations.
- Enhanced the sync manager to update peer lists based on authoritative configurations from relay group events.
- Updated event handling to incorporate policy checks during event imports, ensuring compliance with relay rules.
- Refactored various components to utilize the new `sha256-simd` package for improved performance.
- Added comprehensive tests to validate the new synchronization and group management functionalities.
- Bumped version to v0.24.1 to reflect these changes.
- Bumped versions of several dependencies in go.mod, including golang.org/x/crypto to v0.43.0 and golang.org/x/net to v0.46.0.
- Added new indirect dependencies for improved functionality.
- Removed outdated files: package.json, POLICY_TESTS_SUCCESS.md, and POLICY_TESTS_SUMMARY.md.
- Introduced a comprehensive deployment script for automated setup and configuration.
- Added testing scripts for deployment validation and policy system tests.
- Bumped version to v0.19.0.
