TASK: Add method to save a `Person` to a file

[TheGittyPerson]

Leave a comment if you want to work on this task!

*This task is an extension of task #142. You can wait for that one to be completed and merged first, or take/help complete the task.

Difficulty: Lower Intermediate to Intermediate

TODO:

• Create a method called save_to_file() in the Person class in person.py. It's goal is to save a serialized copy of the Person instance as JSON data.
• The method should have two paramters: a path parameter of type Path (from pathlib), and a create parameter of type bool which defaults to True.
  • The Path should have a .json extension. If it doesn't, append it to the file name.
  • If create is True, the file is created if it does not exist. An error is raised is create is False and the file does not exist yet.
• Add a load_from_file classmethod to do the opposite (without the create parameter and returns a Person). If the assignee of task 142 did not make a from_json() method, you don't have to do this.
• Remember to add type hints and docstrings where necessary and follow PEP 8

PR steps:

1. Fork this repo
2. Clone the forked repo
3. Create a new branch and name it feature/person-save-to-file
4. Push commits to your remote fork
5. Create a pull request titled TASK: Add method to save a `Person` to a file (#152)
6. At the end of the PR description, add Closes #152
7. Submit the PR (Ensure you allow maintainers to edit)

Please make sure you have read the Contributing Guidelines before working.

---

Feel free to ask any questions here!

If you are interested in working on this task, please leave a comment requesting assignment to explicitly let others know the task is taken and prevent duplicate PRs.

[Rithikmahadev12]

I see the issue requires adding a save_to_file method that serialises a Person instance to JSON and a load_from_file classmethod that deserialises it, with proper handling of Path extensions and existence checks. I can implement this for an estimate of $5 USD, provided the scope remains limited to what is described. Please confirm that this matches the intended work before I begin. I can deliver the changes within a day or two of receiving the go‑ahead.

[TheGittyPerson]

@Rithikmahadev12 hi! this is an educational repository and we don't do payments. let alone the fact that github is for open-source projects and paying for contributions is not what the purpose of open source is