Build national party account totals endpoint [Profile page raising and spending tabs]

[pkfec]

What we’re after

To support the display of totals of receipts and disbursements for NPA, we need to create a new endpoint.

Related ticket(s)

• Database work - add aggregate data of schedule A and B for National party accounts #5787

Completion criteria:

• New endpoint /national-party/totals/
• Unitemized totals are also included

Design

National party committee profile page - raising tab

National party committee profile page - spending tab

[pkfec]

Backed work to publish the totals endpoint is completed in pr #5846