chore: Add testing configuration and clean up duplicate files

- Added pytest configuration and test suite
- Added TypeScript configuration for both frontend apps
- Removed duplicate migration files from backend/backend/migrations/
- Enhanced project structure for better testing and development"

backend/tests/test.env

@@ -0,0 +1,7 @@
+# Test Environment Variables
+ENVIRONMENT=test
+DEBUG=true
+SECRET_KEY=test-secret-key-for-testing-123456789
+JWT_SECRET_KEY=test-jwt-secret-key-for-testing-987654321
+DATABASE_URL=postgresql+asyncpg://servicemanager:servicemanager123@postgres:5432/servicemanager
+REDIS_URL=redis://redis:6379/0