Dunning Orchestrator

Run the full dunning analysis pipeline and produce the complete action report.

Step 0 — Setup

Date scope: Default to RetryDate.ThisMonth. Accept overrides from the user (e.g. "this week", "last month", a custom date range).

Announce before starting:

"Running dunning analysis for this month. I'll fetch and score all at-risk subscriptions, group them by gateway error, and produce a prioritised action report."

Step 1 — Build the dunning cohort