Add models for process execution, recipes, system configuration, user management, and error logging

- Implemented ProcessSession, ProcessLog, and TemperatureReading models for tracking tempering processes.
- Created Recipe and RecipePhase models for managing chocolate tempering recipes.
- Developed SystemConfiguration, ErrorLog, and Backup models for system settings and error tracking.
- Introduced User and UserRole models for user management and authentication.
- Added basic structure for schemas and tests.

python_rewrite/requirements.txt

@@ -0,0 +1,37 @@
+# Core Dependencies - Production
+fastapi==0.104.1
+uvicorn[standard]==0.24.0
+pydantic==2.5.0
+pydantic-settings==2.1.0
+
+# Hardware Communication
+pymodbus==3.6.0
+pyserial==3.5
+
+# Async Framework
+asyncio-mqtt==0.16.0
+aiofiles==23.2.0
+aioredis==2.0.1
+
+# Database
+sqlalchemy==2.0.23
+alembic==1.12.1
+
+# State Management
+python-statemachine==2.1.2
+
+# Configuration & Validation
+python-dotenv==1.0.0
+
+# Logging & Monitoring
+structlog==23.2.0
+prometheus-client==0.19.0
+
+# Message Queue
+redis==5.0.1
+celery==5.3.4
+
+# Utilities
+typer==0.9.0
+rich==13.7.0
+httpx==0.25.2