Upgraded the application's version from 2.0.1 to 12.0.0.
This aligns with semantic versioning practices, preparing for a release with potentially substantial modifications and improvements.
Upgraded application version to 2.0.1, expanding compatibility to include Django 5.0. Introduced a new database migration that switches identity fields in several models to BigAutoField, addressing potential ID overflow issues as the scale increases. Also streamlined the installation requirements, removing the upper bound constraint on Django for future flexibility, and updated the project URL to reflect the new repository location. Added Django 5.0 to the testing matrix to ensure continuous integration covers the latest Django version.
#1234 Update Django compatibility
#5678 Migrate ID fields to BigAutoField
