xby-airbnb-search: Airbnb Search and Details Plugin for DSH

`xby-airbnb-search` is a DeepSeek Harness (DSH) plugin designed to simplify how agents process Airbnb search and detail requests. Maintained by the user `xby-skill`, it provides three core functions: API key configuration, listing search with filtering and pagination support, and retrieval of detailed listing information. Developers can install it using the official GitHub command and then use it by invoking the corresponding commands step by step in a conversation. It is suitable for travel planning and listing research scenarios.