@swell05/dsh-whale-tank: DSH Plugin Development Sandbox and Third-Party Plugin Health Check

`@swell05/dsh-whale-tank` is a plugin development sandbox auxiliary tool within the DSH ecosystem, designed to address local development configuration pollution and security concerns regarding third-party plugins. This tool establishes an isolated sandbox by segregating `DSH_HOME`, offering plugin initialization, building, insertion/removal testing, and restoration capabilities, along with an incrementally mergeable development knowledge package. The core component, `.wttools`, is a zero-dependency single-file utility that supports state inspection, dependency management, plugin integration, and sandbox reset operations. Additionally, its `vet` feature conducts a three-phase health check on third-party npm plugins (static hazard detection, dynamic verification, and LLM review), generating security reports to aid decision-making. Users are required to install this plugin in a Node 20+ environment and initialize projects via `/whale-tank-init` or