feat: harden TG3 teleop and add right-B point gesture

.gitignore

@@ -1,21 +1,22 @@
 __pycache__/
 *.py[cod]
-.pytest_cache/
-
-# Runtime state must never be committed. It can contain live session and robot data.
-status.json
-status.json.tmp
 *.log
 *.jsonl
+status.json
+status.json.tmp
+.pytest_cache/
 
-# ROS and Python build products are architecture-specific.
-ros2_py/build/
-ros2_py/install/
-ros2_py/log/
+# ROS/colcon generated output is rebuilt on the target robot.
+tg3_local_teleop/ros2_py/build/
+tg3_local_teleop/ros2_py/install/
+tg3_local_teleop/ros2_py/log/
 python/build/
 *.egg-info/
 *.so
 
+# Local deployment and editor leftovers.
+.deploy-*/
 .DS_Store
-*~
 *.bak
+*.before-*
+*~