build-productlisted

# Build Product Use the product's current identity, storage, job, and event providers. Do not invent a second live writer or hide required durability in process memory. Prove the real user path, not only configuration. A green check that never exercised the user path is not the slice. Open [event contracts](references/event-contracts.md) when the slice creates, publishes, consumes, delivers, or observes something called an event. Use `prototype-product` when the direction is still a probe. Use `maintain-product` for a live defect. Use `finish-product` to deepen an already integrated promise.