Great news!
After the first uv init command, you must run all other commands from the project folder. Note the cd command:
The reason is that we are installing the Python package dependencies into a virtual environment specific to that ~/bridgetest project. For this reason, those package dependencies will not be accessible from any other project.
You are running the uv run command from the ~/ folder instead of from the ~/bridgetest folder:
So you went off the rails at some point in the procedure I described. My instructions were intended to be following in sequence. Unfortunately this means they are prone to not working as expected if you run into a problem and thus break the sequence.
Try performing the instructions again from the top.