Updated Weights

[Cwooper]

Update the backend scorer to be smarter.
Add a frontend weights button next to generate that allows users to sort their schedules.
Depends on #41

[Cwooper]

Backend start and end shouldn't be inverse of each other. There should be an "ideal" start and end, default of probably 10am and 2pm. We may also want these to be non-linear, maybe tanh?

We would want to add the weights to the frontend next to the Generate button. Likely a grayish button with a lucide weight symbol.

The weights can either be fully frontend (like v1), or fully backend.

If backend, we would want to add a migration for this to the logs. To see if people are using weights.

For frontend, we would want to probably have the "Schedule x/y" be clickable to show some schedule stats (score weights, num credits, avg gpa, etc.)