Setup only — do NOT build the dashboard yet, that is the next task.

This part continues the product you already built — the ledger,
receipts, several currencies, crypto, and a book shared with other
people.

Same repository, same documented commands. If you are starting in an
empty folder, your earlier work is fetched for you before you begin.

Before writing anything new, check that what you carried in still stands:

• AGENTS.md still declares stack:, run: and test:;
• the suite the test: line names is green;
• the parts already delivered are still delivered.

And check the product itself, not only its suite. These must still be true
of what you carried in:

• the ledger, receipts, currencies and crypto of the earlier parts still
  hold
• an 84.00 bill split evenly still leaves Grace owing Ada exactly 42.00
• a viewer still cannot edit a shared book, however the request is made

Fix whatever the hand-over broke before you start this part — a judge reads
the product on this rung, and everything the earlier parts earned is judged
again at the end of it, so a regression carried in quietly costs twice.

The last part is the one the person opens every morning: one screen that
answers where the money went, whether this month is going well, and what
they are worth. You decide when it is done; a judge panel scores the result.

The monthly budgets, in the home currency:

Scenarios:

Scenario: Where the money went
Then this month's spending is shown per category against its budget
And a category that is over is unmistakable at a glance

Scenario: The shape of the last half year
Then income and spending over the last six months read as a trend
And the months with nothing in them are visibly empty, not zero

Scenario: What the person is worth
Then cash accounts and crypto holdings add up to one net figure
In the home currency, at the rates and prices of today

Scenario: Who takes the money
Then the largest merchants of the month are listed with their totals

Scenario: A book with nothing in it
When a person opens the dashboard on an empty book
Then it tells them there is nothing yet and how to start
And it does not draw a chart of zeroes

Scenario: In the hand
Then the whole answer fits a phone screen as well as a desktop one
And the first thing visible is whether this month is fine

Everything beyond the scenarios is yours: which charts, what the layout is,
what else deserves the first screen.

When you are done, write .ololo/money-tracker-dashboard-done.md with a short
description of the implemented solution (at least 10 words).