7d2ecd57e9
- Bump version to 3.6.4 in Cargo.toml - Update version references in README.md and README_CN.md - Add RELEASE_v3.6.4.md with English release notes - All workspace examples verified to compile (cargo build --workspace) - Remove RELEASE_v3.6.3.md and docs/ASYNC_EXECUTOR_REVIEW.md - Minor updates in types, lib, transaction_builder, async_executor, executor, params Made-with: Cursor