dsh-bird-tame: Pet Bird Care Plan Generation

The `dsh-bird-tame` plugin for DeepSeek Harness is designed to address vertical-domain problems through a plugin-based ecosystem. As a pure Node.js implementation, it provides locally executed capability for generating pet bird care plans. Once installed, developers can directly invoke the `bird_tame` tool within a DSH session. The plugin depends on `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools`, runs with the permissions of the current process, and is suitable for scenarios with strict network restrictions or the need for offline operation.