[Feature request] More structure for diffs

Each diff would be easier to assess with a brief, plain English explanation, and safer with an associated git commit. Currently codex gives just the diff.

I would go for some logic like:

• If the changes arising from a prompt will be more than a few lines:
• First offer the user the plan to sign off on
• Then offer the user each diff, preceded by a brief explanation of what the diff does with reference to the agreed plan
• At the end, provide the final summary followed by offering the user a git commit, with the current branch as the default, but one of the menu items being a new branch.