star-kz/dsh-subagent-model-switcher: Add model and thinking intensity switching for DSH sub-agent sessions

DSH main sessions feature a model selector, whereas sub-agent sessions do not. This article introduces the plugin *star-kz/dsh-subagent-model-switcher*, maintained by star-kz. It adds a "Model + Thinking Intensity" selector to the sub-agent session input box, while not rendering or altering the official selector in the main session. Changes take effect in subsequent requests for active sub-agents. Selections are saved per session and remain valid after restart; they can also be cleared to override settings and restore default inheritance. Implemented via Host-side setting overrides and agent events, the plugin avoids invoking the official API that would reject sub-sessions' `session/selectModel`. The installation command is `github:star-kz/dsh-subagent-model-switcher`. It requires DSH Web and `@deepseek-ai/schemastery` (^3.18.5), Node.js >= 20, is licensed under MIT, and is categorized under Model Reasoning.