[FEAT] Add models, URLs, and CRUD endpoints for handling achievements of political figures

[Appyouz]

This Pull Request (PR) is to add the Achievement models, serializers, views, and URLs to handle achievements for political figures. This work closes #13.

I followed the plan to split up the files and add the new models and endpoints.

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File Changes

1. Models Split:

   • Replaced political_figure/models.py with new files:

     • political_figure/models/__init__.py (just for importing everything)
     • political_figure/models/core.py (has the existing PoliticalFigure model)
     • political_figure/models/achievements.py (New file for the Achievement model)

2. Views Split:

   • Replaced political_figure/views.py with new files:

     • political_figure/views/__init__.py (just for importing everything)
     • political_figure/views/core.py (has the existing views)
     • political_figure/views/achievements.py (New file for the achievement views)

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New Model: Achievement

I made a new model in political_figure/models/achievements.py. It inherits from BaseModel.

Field Name	Type	Notes
political_figure	ForeignKey	Links to the political figure.
title	CharField	The name of the achievement.
category	TextChoices	Added a category choice list.
description	TextField	More details.
year	IntegerField	To validate 4-digit year
awarding_body	CharField	Who gave the award.
evidence_link	URLField	A link to prove it.
status	TextChoices	Added a status choice list.

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Serializer and Validation

I created the AchievementSerializer.

I also added a custom validation in the serializer for the year field to make sure people enter a proper 4-digit year (like 2025 AD or 2082 BS) and not something too short or too long.