## Summary
Describe the change clearly.
## Why
Explain the problem and why this approach was chosen.
## Validation
- [ ] `cargo fmt --all -- --check`
- [ ] `cargo clippy --all-targets --all-features -- -D warnings`
- [ ] `cargo test --all-features --all-targets`
- [ ] Docs updated (if user-facing changes)
## Risk
Note any migration, compatibility, or security implications.