refactor: Delete unused utility files

Remove queryBuilder.js and pagination.js — zero imports anywhere in codebase.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/utils/pagination.js

@@ -1,25 +0,0 @@
-export const DEFAULT_PAGE_SIZE = 20;
-export const MAX_PAGE_SIZE = 100;
-
-export const parsePagination = (query) => {
-  const page = Math.max(1, parseInt(query.page) || 1);
-  const limit = Math.min(
-    MAX_PAGE_SIZE,
-    Math.max(1, parseInt(query.limit) || DEFAULT_PAGE_SIZE)
-  );
-  const offset = (page - 1) * limit;
-
-  return { page, limit, offset };
-};
-
-export const paginatedResponse = (data, total, { page, limit }) => ({
-  data,
-  pagination: {
-    page,
-    limit,
-    total,
-    totalPages: Math.ceil(total / limit),
-    hasNext: page * limit < total,
-    hasPrev: page > 1,
-  },
-});

src/utils/queryBuilder.js

@@ -1,63 +0,0 @@
-import { and, or, ilike, eq, desc, asc } from 'drizzle-orm';
-import { NotFoundError } from './errors.js';
-
-/**
- * Genericky query builder pre list operacie
- * @param {object} db - Drizzle db instance
- * @param {object} table - Drizzle table
- * @param {object} options - Query options
- */
-export const buildListQuery = (db, table, options = {}) => {
-  const {
-    searchTerm,
-    searchFields = [],
-    filters = {},
-    orderBy = 'createdAt',
-    orderDir = 'desc',
-    limit,
-    offset,
-  } = options;
-
-  let query = db.select().from(table);
-  const conditions = [];
-
-  // Search
-  if (searchTerm && searchFields.length > 0) {
-    const searchConditions = searchFields.map((field) =>
-      ilike(table[field], `%${searchTerm}%`)
-    );
-    conditions.push(or(...searchConditions));
-  }
-
-  // Filters
-  Object.entries(filters).forEach(([key, value]) => {
-    if (value !== undefined && value !== null && value !== '') {
-      conditions.push(eq(table[key], value));
-    }
-  });
-
-  if (conditions.length > 0) {
-    query = query.where(and(...conditions));
-  }
-
-  // Order
-  const orderFn = orderDir === 'desc' ? desc : asc;
-  query = query.orderBy(orderFn(table[orderBy]));
-
-  // Pagination
-  if (limit) query = query.limit(limit);
-  if (offset) query = query.offset(offset);
-
-  return query;
-};
-
-/**
- * Wrapper pre single item fetch s NotFoundError
- */
-export const findOneOrThrow = async (db, table, whereClause, errorMessage) => {
-  const [item] = await db.select().from(table).where(whereClause).limit(1);
-  if (!item) {
-    throw new NotFoundError(errorMessage);
-  }
-  return item;
-};