nav2_safety_layer 0.1.2

Pure-Dart bridge composing navigation_safety_core primitives over ROS 2 Navigation Stack (nav2) Collision Monitor / Detector state messages.

Changelog

0.1.2

• Republish from the embedded-target Dart 3.10.1 SDK (Flutter 3.38.3) to correct a stale ^3.11.0 SDK floor in the previously-published artifact. No source or behavior change; the source already declared sdk: ^3.10.0. Restores pub get for embedded/automotive Dart consumers on Dart 3.10.x.

0.1.1 — 2026-05-10 — Pana score recovery (Theme α P3)

• Trim pubspec description to within the pana 60–180 character target.
• Add minimal example/main.dart for pana documentation scoring.
• Apply dart format to clear any formatter findings.
• No SDK source changes; metadata + format pass only.

0.1.0 — 2026-05-10 — Initial nav2 safety-layer composition

• Nav2CollisionMonitorState / Nav2CollisionDetectorState — Dart records mirroring nav2_msgs/msg/CollisionMonitorState and nav2_msgs/msg/CollisionDetectorState ROS 2 messages verbatim.
• Nav2CollisionAction — enum mirroring the upstream uint8 action-type constants (DO_NOTHING / STOP / SLOWDOWN / APPROACH / LIMIT) with caution-add-only fallback for unknown values.
• Nav2SafetyMapper — static mapper from collision-monitor state events to navigation_safety_core AlertExplainer advisories.
• Nav2SafetyLayer — composition class with internal AlertDensityThrottle rate-limiting and a broadcast advisory stream the integrator's HMI can subscribe to.
• No transport lock-in: package depends only on navigation_safety_core + equatable. Integrators wire any ROS-Dart bridge (roslibdart, rosbridge over WebSocket, MQTT bridge, custom) to feed typed records into the layer.
• Tests construct typed records directly; no live bridge required.