dsh-kimi-bridge: Bridging Kimi CLI into DeepSeek Harness

# Introduction When building agent workflows with dsh (DeepSeek Harness), a common requirement arises: the main agent wants to seek a second opinion from an external coding agent, or parallelize a coding task. If using the Kimi CLI, the manual approach involves manually spawning `kimi -p`, capturing the output stream, polling for status, and then feeding the results back into the dsh session—such scaffolding code is repetitive and error-prone, exactly the kind of thing a harness plugin should eliminate for you. The dsh-kimi-bridge introduced below does exactly this: it transforms the Kimi CLI into a tool directly callable within dsh and provides a corresponding observation interface in the WebUI. # What is this dsh-kimi-b