[backend] API endpoints and scheduled evaluation jobs

Repo: · Issue: #982 Status: Open · Priority: P2 Assignee: Unassigned

Description

Summary

Expose NBA recommendations and add hourly/nightly evaluation jobs.

Scope

• API endpoints for list/ack/take/feedback
• Hourly job for short-window friction signals
• Nightly job for longer-horizon signals + rescore/expire

Role

Backend/API

Estimate

3–4 days

Implementation Notes

Dash adds notes here while working

Related

Link to people, meetings, dependent tickets