better-basicfun: DSH Default Workspace and Resource Management Plugin

`better-basicfun` is a DeepSeek Harness (DSH) plugin designed to fill gaps in host-side basic functionality. It provides default workspace initialization, persistent memory loading, and read-only resource access tools (such as `dsh_resources`). Its core highlight is acting as a bridge between `CLIProxyAPI` and DSH by automatically syncing the model catalog and enriching the capability metadata of DSH’s native selectors. The plugin enhances local agent environment management through secure read-only permissions and configuration synchronization, but note that it exposes sensitive data, does not proxy inference, and is not a Codex plugin.