希望支持ACP

### Problem Statement

在使用Paseo等工具时，需要通过ACP将open-code-review注册为一个单独的Provider，以便于多Agent协同工作

### Proposed Solution

无

### Alternatives Considered

_No response_

### Affected Area

Other

### Additional Context

_No response_

Clarify ACP's provider requirements and how Paseo expects providers to be registered for multi-agent use. No files, tests, or entry points are named in the issue; done should mean that open-code-review can be registered as a separate ACP provider and work with Paseo.

Written by the indexing model from the issue text.