dsh-laos: Laos Country Plugin

The DeepSeek Harness (DSH) plugin dsh-laos is maintained by uckkk and designed to provide agents with a foundational data interface for Laos. Implemented entirely in Node.js, the plugin has no network dependencies and can retrieve Laos-related data without additional requests, effectively reducing developers' integration overhead. It depends on the DSH core library at runtime, and can be installed using `dsh plugin add github:uckkk/dsh-laos`. Its lightweight design and direct data retrieval make it suitable for scenarios that require access to Laos-specific information.