Enhancement: Only commit staged files if files have been staged.

[nevercast]

Issue

I appreciate Aider's commit messages; they often surpass Copilot's, which seems to have declined recently.

In my workflow, I stage the files I intend to commit, create a commit message for them, and then proceed to stage the next set of files.

I'm considering using Aider's /commit feature for this process. However, Aider currently stages and commits all modified files.

This doesn't align with my method of working alongside Aider, where I prefer to commit only the staged files, not every changed file.

Additionally, I've observed that Aider overlooks new files during /commit. If /commit is designed to stage and commit all changes, excluding new files appears to be an oversight.

Finally, during refactors, I often end up with numerous uncommitted files. I need to segment these into several commits. Even if I wanted Aider to commit everything, I would encounter a "diff too large" error.

Version and model info

Aider v0.43.4
Models: openrouter/anthropic/claude-3.5-sonnet with diff edit format, weak model gpt-3.5-turbo
Git repo: .git with 505 files
Repo-map: using 1024 tokens
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[zhangyi1357]

I want this too!