PARTIAL SAVE: writes ONLY the 'DealOffer' field of TitlePublicConfigurationModel; all other v1/v2 fields stay untouched. Limited-time offers WITH PROGRESSION — starter packs, comeback bundles, aquarium-style chains, pick-one-of-N. Two axes: a SLOT is a UI position that cycles through its own ordered Queue of offers (its Availability.Schedule decides how: Chained advances per player, Scheduled/Cyclic/AlwaysOn follow the wall clock, Triggered fires on an event), and an OFFER is a graph of nodes. There is no declared graph mode: the shape (single, chain, branching, choice, metered) is whatever Graph.RootNodeIDs, node NextNodeIDs, ChoiceGroupID and UnlockRules describe. Every node declares its own price as a PriceOptions dictionary — resources, crypto, a store product (real money), an AD CREDIT (that is how "watch a video" is expressed; only the server grants credits) or nothing at all, which means free. A node pays out Reward.Grants, moves offer-local Tracks and adds Reward.MilestonePoints to the offer milestone bar. Slots, offers and nodes are decomposed into named blocks (Identity, Availability, Behaviour, Graph, Milestones, Pricing, Reward), each with its own independent preset binding into DealOffer.Presets. Distinct from Store (always-on shop, no progression) and Premium (ongoing paid subscriptions).