ARCASOS Short-Term Rental Search

Natural language OR structured search over Korean short-term rental inventory. JSON-RPC 2.0 method 'message/send' is supported. Message parts accept either 'text' (natural language, processed by SHV engine with Korean-specific semantic expansion) or 'data' (structured query, mapped to direct DB filters — faster, deterministic). Structured field names follow Schema.org Accommodation/VacationRental conventions where applicable (petsAllowed, numberOfBedrooms, occupancy.maxValue, address.addressLocality, floorSize.value, amenityFeature), with ARCASOS-specific simple field names also accepted as aliases (pet_allowed, bedrooms, location, etc.). Returns pure Schema.org-compliant ItemList of Accommodation objects — each item includes @type, address, geo, occupancy, numberOfBedrooms, floorSize, offers (with businessFunction=LeaseOut and eligibleDuration), amenityFeature array (with view:/mood: prefixed ARCASOS extensions), and aggregateRating where applicable.