/** Fast deterministic hash to shorten long strings */ export function shortHash(str: string): string { let h1 = 0xdeadbeef; let h2 = 0x41c6ce57; for (let i = 0; i < str.length; i++) { const ch = str.charCodeAt(i); h1 = Math.imul(h1 ^ ch, 2654435761); h2 = Math.imul(h2 ^ ch, 1597334677); } h1 = Math.imul(h1 ^ (h1 >>> 16), 2246822507) ^ Math.imul(h2 ^ (h2 >>> 13), 3266489909); h2 = Math.imul(h2 ^ (h2 >>> 16), 2246822507) ^ Math.imul(h1 ^ (h1 >>> 13), 3266489909); return (h2 >>> 0).toString(36) + (h1 >>> 0).toString(36); }