dsh-granular-settings: Fine-Grained Settings Platform for DeepSeek Harness

`dsh-granular-settings` is a plugin within the DeepSeek Harness (DSH) ecosystem that provides granular configuration management capabilities. It supports Session, Workspace, and Global scopes, includes eight control types, and allows other plugins to register configuration items. The plugin provides Host-side APIs for registering controls and Browser-side APIs for reading settings, along with a debugging interface. It depends on `dsh-event-relay` and the Harness environment for installation, and is released under the MIT License.