fixed the multi-line note and some utf-8 stuff

scripts/quality-gate.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Formatting has no warning level: --check makes any difference a hard failure.
+cargo fmt --all -- --check
+
+# Keep the explicit flag even though Cargo.toml denies Rust warnings so direct
+# and automated Clippy runs have the same, visible contract.
+cargo clippy --all-targets --all-features -- -D warnings
+
+cargo test --all-targets --all-features
+RUSTDOCFLAGS="-D warnings" cargo doc --no-deps --all-features
+cargo build --release --all-targets --all-features