Newsletter Monetization Planner Plans the money and growth-loop economics for an owned-audience program — a newsletter or creator list — across three revenue lines: paid-subscription tiers, ad/sponsorship inventory with a rate card, and referral/recommendation loops. This is the build skill for the SEND D (Direct-response / Conversion) lever on owned audiences: it produces the revenue model, the list-growth ↔ revenue projection, and the honest-offer / disclosure checks. It does not compute the profile-weighted EQS or run the D1 veto (that is email-quality-auditor), and it delegates the return…