// Minimal deep equal utility for primitives, arrays, and plain objectsexport function deepEqual(a: any, b: any): boolean {  if (a === b) return true;  if (typeof a !== typeof b) return false;   if (Array.isArray(a) && Array.isArray(b)) {    if (a.length !== b.length) return false;    for (let i = 0; i < a.length; i++) {      if (!deepEqual(a[i], b[i])) return false;    }    return true;  }   if (typeof a === "object" && typeof b === "object") {    const aKeys = Object.keys(a);    const bKeys = Object.keys(b);    if (aKeys.length !== bKeys.length) return false;    for (const key of aKeys) {      if (!(key in b)) return false;       if (!Object.hasOwn(b, key) || !deepEqual(a[key], b[key])) return false;    }     return true;  }   return false;}