Get all offers

Retrieve offers with optional filtering by city, data type, scope type, and more. Results are paginated and sorted by featured status and creation date. **Query Parameters:** - city: Filter by city ID - dataType: Filter by vertical (RESTAURANT, EXPERIENCE, HOTEL) - scopeType: Filter by scope (ALL, LIMITED) - featured: Filter by featured status (true/false) - isActive: Filter by active status (true/false) - page: Page number (default: 1) - limit: Items per page (default: 20, max: 100) **Returns:** - Array of offers matching the criteria - Total count, page number, and limit