Offer Recommender

Applies config/retention-matrix.yaml (pre_churn_matrix or win_back_matrix) to the classified cohort. No API calls — pure rule evaluation, deterministic, re-runnable when YAML changes.

Output: recommendation object appended per row

{
  "action": "discount",
  "params": { "percent": 25, "duration_months": 3 },
  "rationale": "High-LTV, price objection — aggressive discount preserves long-term value",
  "rule_index": 0,
  "ltv_tier": "high",
  "ltd_tier": "veteran"
}

Supported actions: discount, pause, downgrade, human_triage, standard_offer, accept.