v4.0.0 - Migration to vertical slicing architecture

2026-03-16 - v4.0.0

Changes summary:

• Complete migration to vertical slicing architecture.
• Project structure and service endpoints have been reorganized.
• app.py has been replaced by main.py as the entrypoint.
• "wsfe" service renamed to "wsfev1" (endpoint URL updated).
• Health checks redistributed across services.
• Decoupled wsaa and wsfev1 clients.
• Updated Dockerfile and docker-compose.yml for compatibility.

Documentation

• Documented new architecture, installation steps, and service structure.

Tests

• Reorganized test suite to align with vertical slicing and updated import paths.