Large File Handling Strategy

### Problem Statement

Regarding the review strategy for large files and large diffs, it is recommended to implement degradation handling strategies—such as individual review or split review—rather than simply filtering them out and skipping the review entirely.

### Proposed Solution

Users can choose whether to process large files via command-line arguments.

### Alternatives Considered

_No response_

### Affected Area

Review Agent / LLM interaction

### Additional Context

_No response_

Start by locating the command-line argument definitions and the code that filters or handles large files and diffs in the Review Agent/LLM interaction. Trace the current behavior for oversized review inputs; done means users can choose how large files are processed and the review degrades through individual or split review instead of silently skipping them.

Written by the indexing model from the issue text.