@suluk/cost - v0.2.0
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    Type Alias SettlementMethod

    SettlementMethod: "credit" | "rate-limited" | "free"

    HOW a declared cost is RECOVERED from the user (C044). rate-limited ⇒ free to the user — the cost is "paid" by CAPPING usage, so the op's x-suluk-ratelimit IS the settlement (no money moves). credit ⇒ the user pays credits (a balance is debited). free ⇒ truly free (the operator absorbs any cost). A purely STATIC fact (an enum + an integer + names) — never a request value, so it rides the x-suluk-cost wall (matcher-invisible since C024).