codex review should provide a way to add prompt to the review tasks

What feature would you like to see?

Currently, when I use the --base or --commit flag, I can't utilize the PROMPT. However, there are times when we need to provide additional instructions to the codex review.

<img width="1008" height="186" alt="Image" src="https://github.com/user-attachments/assets/32c5b547-6df9-4bd9-8e74-ea919d0bf28a" />

Additional information

Run a code review non-interactively

Usage: codex review [OPTIONS] [PROMPT]

Arguments:
  [PROMPT]  Custom review instructions. If `-` is used, read from stdin

Options:
  -c, --config <key=value>  Override a configuration value that would otherwise be loaded from `~/.codex/config.toml`. Use a dotted path
                            (`foo.bar.baz`) to override nested values. The `value` portion is parsed as TOML. If it fails to parse as TOML, the raw
                            string is used as a literal
      --uncommitted         Review staged, unstaged, and untracked changes
      --base <BRANCH>       Review changes against the given base branch
      --enable <FEATURE>    Enable a feature (repeatable). Equivalent to `-c features.<name>=true`
      --commit <SHA>        Review the changes introduced by a commit
      --disable <FEATURE>   Disable a feature (repeatable). Equivalent to `-c features.<name>=false`
      --title <TITLE>       Optional commit title to display in the review summary
  -h, --help                Print help (see more with '--help')