v0.2.7

Starting critical infrastructure upgrades.

Database Integrity Enhancements. The data annotations for Entity Framework Core were not enough. I bulked up the database constraints, a critical element of database architecture. I should have implemented the restrictions at the very beginning.

Database Wipeout. This release required clearing the database. For this reason, I cleared out all migrations and started with InitialCreate again. Although this is a significant change, since this is a pre-version-1 release, this is included in a "pre-minor" release.

Source Template Restrictions. The dropdown menu for selecting the template for a new project has been patched. Now, it only allows users to select a locked template.

Color Fixes. I replaced the ugly violet color with indigo, which we needed for a long time.

Project Creation Key Violation. Creating a project caused a foreign key violation. The foreign key violation was uncaught until I implemented the database constraints. The bug is patched.