Add kimi-agent: kimi-code CLI wrapped as a LiteLLM model

Runs the kimi-code coding agent in its own container, exposed as an
OpenAI-compatible model ("kimi-agent") that LiteLLM/Open WebUI can call
directly. Backed by the user's own Kimi/Moonshot subscription via
`kimi login`, not the pay-per-token API. Mount is scoped to a dedicated
~/kimi-workspace directory rather than the full home dir.

openai/kimi-agent/Dockerfile

@@ -0,0 +1,11 @@
+FROM node:22-slim
+
+RUN npm install -g @moonshot-ai/kimi-code
+
+WORKDIR /workspace
+
+COPY server.js /app/server.js
+
+EXPOSE 8000
+
+ENTRYPOINT ["node", "/app/server.js"]