Update Code

Time for the coup de grâce!

Let's test our agent's ability to actually fix a bug all on its own.

Assignment

Manually update calculator/pkg/calculator.py and change the precedence of the + operator to 3.
Run the calculator app, to make sure it's now producing incorrect results: uv run calculator/main.py "3 + 7 * 2" (this should be 17, but because we broke it, it says 20)
Run your agent, and ask it to "fix the bug: 3 + 7 * 2 shouldn't be 20"

After your agent fixes the calculator, run and submit the CLI tests.