support batch-commit copy

[agavra]

I often have my agent commit multiple commits in one session, which works great with roborev since it breaks up the review. The problem is that I don't want to stop the agent after its first commit to address the roborev review, instead I'd rather batch the reviews from all the commits with some detailed instructions to feed back into the agent. For example it would output:

I've reviewed the following commits [391d117, 57c6379] and have identified the following issues.

For commit 391d117:

- High ...
- ...

For commit 57c6379:

- Medium ...

Then I could ask roborev to copy over the reviews from multiple review sessions in one batch (this would be extra useful in conjunction with #98 so I'm not floodign the agent with fixes)

[wesm]

What I do for this in moneyflow is to use the spacebar to select reviews (which shows a checkmark in the tui) and then you press an action (e.g. y) here, so that might be a good workflow -- selection (maybe highlighting the selected row) and then press y to yank all selected including the one under the cursor

[wesm]

note that you can review a range of commits:

❯ roborev review --help
Review a commit, commit range, or uncommitted changes.

Examples:
  roborev review              # Review HEAD
  roborev review abc123       # Review specific commit
  roborev review abc123 def456  # Review range from abc123 to def456 (inclusive)
  roborev review --dirty      # Review uncommitted changes
  roborev review --dirty --wait  # Review uncommitted changes and wait for result
  roborev review --branch     # Review all commits on current branch since main
  roborev review --branch --base develop  # Review branch against develop
  roborev review --since HEAD~5  # Review last 5 commits
  roborev review --since abc123  # Review commits since abc123 (exclusive)

This needs to be documented better in the docs site

[agavra]

Nice i like the moneyflow TUI experience - I have roborev installed with the commit hooks so I'm not manually triggering the reviews, the agent is just committing things as it goes which triggers reviews (I actually quite like that workflow)