Add pre-commit CI hooks

[lucarlig]

Summary

• Add a local pre-commit configuration that mirrors CI: fmt, clippy, nextest, build, and bench compile.
• Disable filename passing so each hook runs at workspace scope like GitHub Actions.

Validation

• cargo fmt --all --check
• cargo clippy --locked --workspace --all-targets -- -D warnings
• cargo nextest run --locked --workspace
• cargo build --locked --workspace
• cargo bench --locked --workspace --no-run
• uvx --from pre-commit pre-commit validate-config
• git commit hook reran all five configured hooks successfully

[dawid-nowak]

LGTM