dsh-subagent-codebuddy: DeepSeek Harness CodeBuddy Code CLI Sub-agent Plugin

flg1217/dsh-subagent-codebuddy is an MIT-licensed DSH plugin designed to integrate the CodeBuddy Code CLI into DSH, enabling it to serve as an independent reasoning sub-agent provider. The plugin exposes the `subagent_codebuddy` delegation tool, supporting in-process sub-agent session management, parallel task execution, and `send_message` for continuing conversations. Its core features include: unified context management and serialization of the full history by DSH; bidirectional translation of text and tool steps (e.g., `tool/call` and `tool/result`) between DSH sessions and the CodeBuddy process; and automatic saving of image inputs to temporary files; automatically when the prompt exceeds 26K characters.