shared package

shared/
├── package.json                           # name: @darkpool/shared, dotenv + zod deps
├── tsconfig.json                          # composite: true
└── src/
    ├── index.ts                           # browser-safe barrel
    ├── env.ts                             # @darkpool/shared/env (server-only)
    ├── constants.ts                       # mirrored Move constants
    └── bytes.ts                           # hex/utf8 to byte vector helpers

import { loadEnv } from '@darkpool/shared/env';

// strict: throws with a clean message on missing / malformed vars
const env = loadEnv();

// permissive: scripts that only touch a subset
const env = loadEnv({ permissive: true });

export const Outcome = { YES: 1, NO: 2 } as const;
export const DUSDC_DECIMALS = 6;
export const SUI_CLOCK_OBJECT_ID = '0x0000000000000000000000000000000000000000000000000000000000000006';

export function hexToBytes(hex: string): Uint8Array;
export function utf8ToBytes(s: string): Uint8Array;
export function stripHexPrefix(hex: string): string;