adversarial-review: Adversarial Multi-Perspective Code Review Plugin

`adversarial-review` is an adversarial multi-perspective code review plugin designed to overcome the limitations of single-perspective reviews by conducting a parallel attack-style review through multiple lenses. It supports execution via a DSH plugin entry point or a standalone CLI, and is compatible with any model conforming to the OpenAI protocol. Core features include deterministic static sentinel scanning, multi-lens probing, arbitration and merging, severity grading, and suppression rules. The plugin has zero third-party dependencies, runs in read-only process mode, and ensures high-quality code delivery through a seven-step pipeline (from diff parsing to history logging).