dsh-algeria: Algeria National Memory Plugin

`dsh-algeria` is a DSH memory plugin maintained by uckkk, focusing on providing static information about Algeria. The plugin is implemented purely in Node.js, requires no network requests, and is suitable for offline use. Users must install prerequisite dependencies such as `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools`. It can be installed with `dsh plugin add github:uckkk/dsh-algeria`, making it suitable for scenarios where an agent needs background knowledge of Algeria while avoiding external API calls.