Function recalcMultiplierAfterDnp

recalcMultiplierAfterDnp(
    opts: {
        app: DfsApp;
        originalMultiplier: number;
        originalPickCount: number;
        playType: DfsPlayType;
        survivingHits: number;
        survivingPickCount: number;
    },
): { newMultiplier: number; usedFallback: boolean }
Recompute a bet's effective multiplier after one or more legs go DNP / void. Demotion math:
1. Look up the standard multiplier at the original (pickCount, hits=pickCount) - i.e. the all-hit payout for the original tier.
2. Look up the standard at the surviving (pickCount-dnpCount, survivingHits).
3. Scale the slip's displayed multiplier by (surviving / original).
The scaling preserves any Demon/Goblin or boost adjustment baked into the displayed multiplier. When either lookup fails (unknown play type or missing schedule entry), fall back to the original multiplier and surface usedFallback=true so the caller can warn the user.

Handles multi-DNP correctly: caller passes the current surviving pick count and hits, not always pickCount-1.
Parameters
- opts: {
      app: DfsApp;
      originalMultiplier: number;
      originalPickCount: number;
      playType: DfsPlayType;
      survivingHits: number;
      survivingPickCount: number;
  }
  - app: DfsApp
  - originalMultiplier: number
    Multiplier as displayed on the original slip (post-boost, pre-DNP).
  - originalPickCount: number
    Pick count when the slip was originally placed.
  - playType: DfsPlayType
  - survivingHits: number
    Hits among the surviving (non-DNP) legs.
  - survivingPickCount: number
    Pick count after removing all DNP legs. Must be ≥ 1 and ≤ originalPickCount.
Returns { newMultiplier: number; usedFallback: boolean }
- Defined in payouts.ts:123

Function recalcMultiplierAfterDnp

Parameters

app: DfsApp

originalMultiplier: number

originalPickCount: number

playType: DfsPlayType

survivingHits: number

survivingPickCount: number

Returns { newMultiplier: number; usedFallback: boolean }

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