Adds the ninth fleet-deployment crate. Default build is ROS2-free: topic_name
hex-escapes arbitrary tines topics into valid ROS2 names under /tines/ (deterministic,
injective) and wires Node<LogStore, BtTransport>. The rclrs-backed self-contained
TinesNode lives under #[cfg(feature="ros2")] with an off-by-default ros2 feature, so
the crate builds/tests without a ROS2 toolchain. Adds scripts/check-ros2.sh (needs a
ROS2 toolchain; not run in CI), registers the crate in workspace members, and passes
sh scripts/ci.sh.
kyle
7be09f8e9a