@kuanfu0430/dsh-compaction-tune: DeepSeek Harness Auto-compaction Threshold Configuration Plugin

`@kuanfu0430/dsh-compaction-tune` is a client plugin for DeepSeek Harness (DSH) that addresses the limitation of the default static compaction threshold not being dynamically adjustable. It provides Composer-level UI controls and supports configuring the compaction threshold in two modes: percentage (30%–80%) and token count (64k–832k). Settings are persisted locally and take effect from the next Agent step. Installation requires using the Web profile; after restarting, a control chip appears in the bottom-right corner of the input box. When using the plugin, note its reliance on the backend compaction engine, sub-session isolation, and version compatibility limitations.