Feature/unified ground station bringup

[Haroldmin1028]

• Changed commands to run ground station to a single command

• Created ground_station.launch.py for a unified launch process

• Added passing smoke tests

• Updated BuildInstructions.md

• Validation logs:

$ ros2 launch waybionic_bringup ground_station.launch.py launch_rviz:=false use_joint_state_publisher_gui:=false
[INFO] [launch]: All log files can be found below /home/hoodu/.ros/log/2026-07-21-15-38-55-615679-HKINSPIRON-3799
[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [robot_state_publisher-1]: process started with pid [3804]
[INFO] [temporary_diagnostics_publisher.py-2]: process started with pid [3805]
[robot_state_publisher-1] [INFO] [1784669935.969631502] [robot_state_publisher]: Robot initialized
[temporary_diagnostics_publisher.py-2] [INFO] [1784669936.144753095] [temp_diag_pub]: Publishing temporary diagnostics to /diagnostics in 'normal' mode at 2.0 Hz
^C[WARNING] [launch]: user interrupted with ctrl-c (SIGINT)
[robot_state_publisher-1] [INFO] [1784670104.043991761] [rclcpp]: signal_handler(SIGINT/SIGTERM)
[INFO] [robot_state_publisher-1]: process has finished cleanly [pid 3804]
[INFO] [temporary_diagnostics_publisher.py-2]: process has finished cleanly [pid 3805]

[Haroldmin1028]

Addressed comments and fixed PR.

• Added missing waybionic_unified.rviz
• Fixed launch files to pass tests
• Passes CI so Yassin doesn't get alerted

[yassinsolim]

Changes Requested

Reviewed and tested commit 7d7523b.

The unified launch works when the full workspace is built, but these issues need to be fixed before merging:

1. Temporary diagnostics publisher crashes

   • ground_station.launch.py passes mode: mock.
   • The publisher only accepts normal, fault, stale, or cycle.
   • Enabling start_temporary_diagnostics_publisher causes an immediate ValueError.

2. Build instructions exclude the RViz plugin

   • BuildInstructions.md and scripts/check_waybionic_ws.sh only build waybionic_description and waybionic_bringup.
   • A fresh build opens RViz without the diagnostics panel because waybionic_rviz_plugins is not installed.
   • Build the full workspace or include all three packages.
   • Add waybionic_rviz_plugins as an exec_depend in waybionic_bringup/package.xml.

3. The new launch test is not actually running

   • test_ground_station_launch.py is not registered in CMakeLists.txt.
   • CI only runs the existing lint and metadata tests.
   • The test also uses process=None and immediately passes without confirming that the expected nodes remain alive.
   • Register it with add_launch_test and assert the expected processes or diagnostics topic.

4. Generated Python cache was committed

   • Remove the committed __pycache__/*.pyc file.
   • Add __pycache__/ and *.pyc to .gitignore.

I verified the full build and RViz startup on Ubuntu and macOS. These failures are not macOS-specific. Once these issues are fixed and CI runs the real launch test, this should be ready to approve.