[Feature]: Add '--yes' or '-y' option to automatically accept AI generated commit messages

Description

I propose to add a --yes or -y option to the aic command line utility, which will allow users to automatically accept the first AI generated commit message without requiring interactive input. This feature will be especially useful when aic is integrated into automation scripts or other environments where manual input is not convenient or possible.

Currently, when a user runs aic, they are presented with one or multiple AI-generated commit messages and are asked to select one. While this is a great feature for manual use, it becomes a bottleneck when trying to automate the Git commit process as it requires an interactive terminal to make a choice.

Suggested Solution

oco -y

Alternatives

No response

Additional Context

No response

Start at the aic command-line entry point and trace the existing interactive commit-message selection flow. Add the -y/--yes behavior so the first generated message is accepted without input, then verify that normal interactive selection still works and that the option can run in automation without a terminal.