Add models and routes for costs, consumption, equipment, maintenance, and production; implement CRUD operations and unit tests

models/scenario.py

@@ -1,5 +1,12 @@
 from sqlalchemy import Column, Integer, String, DateTime, func
 from sqlalchemy.orm import relationship
+from models.simulation_result import SimulationResult
+from models.capex import Capex
+from models.opex import Opex
+from models.consumption import Consumption
+from models.production_output import ProductionOutput
+from models.equipment import Equipment
+from models.maintenance import Maintenance
 from config.database import Base
 
 
@@ -13,7 +20,19 @@ class Scenario(Base):
     updated_at = Column(DateTime(timezone=True), onupdate=func.now())
     parameters = relationship("Parameter", back_populates="scenario")
     simulation_results = relationship(
-        "SimulationResult", back_populates="scenario")
+        SimulationResult, back_populates="scenario")
+    capex_items = relationship(
+        Capex, back_populates="scenario")
+    opex_items = relationship(
+        Opex, back_populates="scenario")
+    consumption_items = relationship(
+        Consumption, back_populates="scenario")
+    production_output_items = relationship(
+        ProductionOutput, back_populates="scenario")
+    equipment_items = relationship(
+        Equipment, back_populates="scenario")
+    maintenance_items = relationship(
+        Maintenance, back_populates="scenario")
 
     # relationships can be defined later
     def __repr__(self):