Interactive Task Management in Gromit Commits

# Interactive Task Management in Gromit Commits

## Overview
This feature introduces an interactive task management system integrated directly into the `grit gromit` command. When a user commits changes using `grit gromit`, the system will fetch associated tasks from the pull request linked to the current branch, allowing the user to update the status of each task interactively. This feature aims to streamline the development workflow by consolidating task management and version control into a single step.

## Goals
- Fetch associated tasks from the pull request linked to the current branch during the `grit gromit` process.
- Provide an interactive interface to update the status of each task (e.g., null, in progress, done, blocked).
- Store the status of tasks within the gromit commit metadata.
- Reflect the overall status of features and tasks in the associated pull request and branch based on the latest gromit commit.

## Non-Goals
- Replacing comprehensive project management tools. This feature aims to provide a lightweight task management solution integrated with version control.

## Features
- **Feature Flag**: Introduce a feature flag in the Grit configuration to enable or disable this interactive task management feature.
- **Task Fetching**: Automatically fetch tasks from the associated pull request when running `grit gromit`.
- **Interactive Task Management**: Provide a command-line interface to interactively update the status of each task.
- **Task Status in Gromit Metadata**: Store the updated status of tasks in the gromit commit metadata.
- **Status Reflection in Pull Request and Branch**: Automatically update the status of features and tasks in the associated pull request and branch based on the latest gromit commit.

## Command-Line Interface
- `grit gromit`: If the feature flag is enabled, fetch associated tasks and provide an interactive interface to update task statuses.

## Interactive Interface
- List all tasks fetched from the associated pull request.
- Allow the user to navigate through the list and update the status of each task.
- Provide a summary of changes before finalizing the gromit commit.

## Configuration
- Add a feature flag in the Grit configuration file to enable or disable this feature.

## Error Handling
- Handle cases where the pull request or associated tasks cannot be fetched.
- Provide informative error messages and fallback options if the interactive task management process fails.

## Documentation
- Document the feature, including how to enable/disable it, how to use it, and its limitations.
- Provide examples and use cases in the documentation.

## Testing
- Unit tests for the task fetching and status update logic.
- Integration tests to ensure the feature works seamlessly with the `grit gromit` command and reflects statuses correctly in pull requests and branches.

## Future Considerations
- Integration with external project management tools for more comprehensive task management.
- Enhancements to the interactive interface for a smoother user experience.

By integrating task management directly into the `grit gromit` process, this feature aims to streamline the development workflow, making it easier for developers to manage tasks and commits in one place.