- Add signoff option to CLI arguments in `cli.rs`
- Implement author name and email retrieval in `git.rs`
- Append signoff to commit message in `main.rs` if enabled
- Add tests for author name and email functions in `git.rs`

Signed-off-by: mingcheng <mingcheng@apache.org>

- Implement detection of GIT_AUTO_SIGNOFF environment variable
- Enable signoff if environment variable is set to true or 1
- Update logic to combine CLI signoff option with environment variable check

Signed-off-by: mingcheng <mingcheng@apache.org>

- Add `AIGITCOMMIT_SIGNOFF` environment variable to README
- Mention auto sign-off feature when variable is set to true

Signed-off-by: mingcheng <mingcheng@apache.org>

- Replace static string formatting with variable interpolation in log messages
- Apply consistent formatting for trace logs across `git.rs` and `openai.rs`

Signed-off-by: mingcheng <mingcheng@apache.org>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

- Update `AIGITCOMMIT_SIGNOFF` to `GIT_AUTO_SIGNOFF` in README for consistency
- Reflect the correct variable used in the code for auto signoff feature

Signed-off-by: mingcheng <mingcheng@apache.org>

- Replace static string formatting with variable interpolation in log messages
- Apply consistent formatting for trace logs across `git.rs` and `openai.rs`

Signed-off-by: mingcheng <mingcheng@apache.org>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

- Update `AIGITCOMMIT_SIGNOFF` to `GIT_AUTO_SIGNOFF` in README for consistency
- Reflect the correct variable used in the code for auto signoff feature

Signed-off-by: mingcheng <mingcheng@apache.org>

- Adjust last modified timestamps in `main.rs` and `openai.rs` for accuracy
- Resolve merge conflict timestamp in `main.rs` to reflect latest update

Signed-off-by: mingcheng <mingcheng@apache.org>

- Bump version from 1.3.2 to 1.3.3 in Cargo.toml
- Add "grok" to keywords list in package metadata

- Introduce --check flag in CLI to verify API key and model
- Implement check_model function to list and validate available models
- Integrate check logic in main.rs with error handling
- Comment out unused dependencies in Cargo.toml
- Update package categories in Cargo.toml

- Update error message formatting in main.rs to use direct variable interpolation
- Simplify debug and error messages in openai.rs with consistent string formatting
- Remove redundant string concatenation for cleaner code readability

Signed-off-by: mingcheng <mingcheng@apache.org>

- Add support for signed-off-by line in commit messages with configurable option
- Refactor commit function to accept signoff parameter in git.rs
- Retrieve author name and email from repository config for signoff
- Remove redundant signoff logic from main.rs and centralize in git.rs
- Update commit call in main.rs to pass signoff requirement

Signed-off-by: mingcheng <mingcheng@apache.org>

- Add instructions for generating git commit messages
- Include details on diff-based message creation
- Remove signed-off-by message from commit instructions
- Update examples to reflect recent commit styles

Signed-off-by: mingcheng <mingcheng@apache.org>