request for Rapid Review with diff content only

### Problem Statement

Our GPU is hosted locally and limited. Currently many teams are using our AI Code Review job at the same time and most of them will get timeout (10 min) even with `low` effort. One line changes of one file will take around 8 mins to review😂

### Proposed Solution

Is there some param that can let it not use any tool but only review with the diff content? This may reduce the GPU load in busy time.

### Alternatives Considered

_No response_

### Affected Area

Review Agent / LLM interaction

### Additional Context

_No response_

Start in the Review Agent / LLM interaction path and inspect how review jobs select tools and pass diff content to the LLM. Determine whether a parameter can disable tool use while retaining diff-only input, then validate that a one-line, one-file review avoids the ten-minute timeout and preserves review output.

Written by the indexing model from the issue text.