To-do List from Finance to SG

There needs to be a clear list of things for both the finance and SG.

For Finances:

1. It should display invoices that need to be created.
2. Check off invoice task once created.
3. It should update the to-do list so that SG knows to send the invoice.
4. Also, it should remind the SG to make and send the roster.

For SG:

1. Display invoices that need to be sent (with a link to the email draft).
2. Remind the SG to make/send the roster and make assignments.
3. Check off roster sending once done.

Ideally, this should be a Google Sheets based system, to allow for manual editing and quick views of everything. Each school should occupy a row (or part of a row), with school name and cells next to it: invoice created, invoice sent, assignments made, roster made, roster sent.

Each completed cell should have a date underneath it. Things that require completion should be highlighted in red.

No files or tests are named; start by inspecting the repository's Python scripts and identifying how a Google Sheets-based workflow could fit the existing project. Confirm the finance and SG states, dates, links, reminders, and red highlighting required for each school, then verify the sheet supports the listed updates and manual editing.