Function is_valid_env_key

crates/openshell-server/src/grpc/provider.rs:1104–1113

(key: &str)

}

pub(super) fn is_valid_env_key(key: &str) -> bool {
    let mut bytes = key.bytes();
    let Some(first) = bytes.next() else {
        return false;
    };
    if !(first == b'_' || first.is_ascii_alphabetic()) {
        return false;
    }
    bytes.all(|byte| byte == b'_' || byte.is_ascii_alphanumeric())
}

// ---------------------------------------------------------------------------
// Trait impls for persistence