v1.1.6 — host-compatible dependencies

Packaging compatibility

• Moves DSH-provided @deepseek-ai/cordis and @deepseek-ai/dsh-storage-domain out of production dependencies and into exact peer dependencies.
• Keeps the host packages as development-only dependencies for local type checking and builds.
• Prevents the plugin install from unnecessarily introducing a second DSH host runtime package.

This is a packaging-only compatibility fix. Existing local token data is not modified.