Implements Git LFS setup and repository size optimization

Adds comprehensive Git LFS implementation and repository cleanup solution to address repository bloat issues:

- Creates TECRepositorySovereign class to manage Git LFS setup and repository optimization
- Implements backup creation for safety before major operations
- Adds automatic tracking configuration for large media files
- Provides manual cleanup guide for repository purge
- Includes status checking and analysis tools for monitoring optimization progress

Addresses repository size limitations and ensures proper handling of large media files through Git LFS, enabling sustainable repository growth while maintaining version control integrity.

Author: Elidorascodex