Simulation tutorial patches

[kjy5]

In addition to #42, there are a couple more patches to fix incorrect filenames and potentially missing environment variables.

My changes do not duplicate/include #42.

Fixes:

• Recommend running source ~/.bashrc after creating the workspace to ensure environment variables are added.
• Patch the controller calibration file to the factory default one (since a calibration file will not be created in the demo).
• Copy and rename certificates to the expected names by the web interface launch scripts.

[Copilot]

Pull request overview

Updates the ROS 2 Stretch simulation tutorial to improve “out-of-the-box” setup for the web teleop demo by clarifying environment setup steps and adding patches/workarounds for expected files.

Changes:

• Instructs users to source ~/.bashrc after adding the workspace setup line to .bashrc.
• Updates the web interface section to explicitly use the uncalibrated URDF and adds a step to patch controller calibration copying.
• Adds instructions to copy/rename certificate files to the names expected by the web teleop launch scripts.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.