[DEV-13054] New endpoint for listing program activities under federal account

[sethstoudenmier]

Description:

New endpoint that returns the Program Activities under a Federal Account.

Technical Details:

This creates the initial files needed to support additional Federal Account endpoints following a similar pattern as the Agency V2 endpoints. The base class is very barebones right now, but will grow as we implement more endpoints.

Requirements for PR Merge:

1. Unit & integration tests updated
2. API documentation updated (examples listed below)
   1. API Contracts
   2. API UI
   3. Comments
3. Data validation completed (examples listed below)
   1. Does this work well with the current frontend? Or is the frontend aware of a needed change?
   2. Is performance impacted in the changes (e.g., API, pipeline, downloads, etc.)?
   3. Is the expected data returned with the expected format?
4. N/A Appropriate Operations ticket(s) created
5. Jira Ticket(s)
   1. DEV-13054

Explain N/A in above checklist:

[zachflanders-frb]

Looks good. I am curious about the decision to use the django ORM vs elasticsearch for this endpoint.

[sethstoudenmier]

Looks good. I am curious about the decision to use the django ORM vs elasticsearch for this endpoint.

@zachflanders-frb We don't currently capture any File B data in Elasticsearch