feat: Enhance dashboard metrics and summary statistics

- Added new summary fields: variance, 5th percentile, 95th percentile, VaR (95%), and expected shortfall (95%) to the dashboard.
- Updated the display logic for summary metrics to handle non-finite values gracefully.
- Modified the chart rendering to include additional percentile points and tail risk metrics in tooltips.

test: Introduce unit tests for consumption, costs, and other modules

- Created a comprehensive test suite for consumption, costs, equipment, maintenance, production, reporting, and simulation modules.
- Implemented fixtures for database setup and teardown using an in-memory SQLite database for isolated testing.
- Added tests for creating, listing, and validating various entities, ensuring proper error handling and response validation.

refactor: Consolidate parameter tests and remove deprecated files

- Merged parameter-related tests into a new test file for better organization and clarity.
- Removed the old parameter test file that was no longer in use.
- Improved test coverage for parameter creation, listing, and validation scenarios.

fix: Ensure proper validation and error handling in API endpoints

- Added validation to reject negative amounts in consumption and production records.
- Implemented checks to prevent duplicate scenario creation and ensure proper error messages are returned.
- Enhanced reporting endpoint tests to validate input formats and expected outputs.

routes/costs.py

@@ -1,7 +1,7 @@
-from fastapi import APIRouter, Depends, HTTPException
+from fastapi import APIRouter, Depends
 from sqlalchemy.orm import Session
 from typing import List, Optional
-from pydantic import BaseModel
+from pydantic import BaseModel, ConfigDict
 from config.database import SessionLocal
 from models.capex import Capex
 from models.opex import Opex
@@ -26,9 +26,7 @@ class CapexCreate(BaseModel):
 
 class CapexRead(CapexCreate):
     id: int
-
-    class Config:
-        orm_mode = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 # Pydantic schemas for Opex
@@ -40,15 +38,13 @@ class OpexCreate(BaseModel):
 
 class OpexRead(OpexCreate):
     id: int
-
-    class Config:
-        orm_mode = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 # Capex endpoints
 @router.post("/capex", response_model=CapexRead)
 def create_capex(item: CapexCreate, db: Session = Depends(get_db)):
-    db_item = Capex(**item.dict())
+    db_item = Capex(**item.model_dump())
     db.add(db_item)
     db.commit()
     db.refresh(db_item)
@@ -63,7 +59,7 @@ def list_capex(db: Session = Depends(get_db)):
 # Opex endpoints
 @router.post("/opex", response_model=OpexRead)
 def create_opex(item: OpexCreate, db: Session = Depends(get_db)):
-    db_item = Opex(**item.dict())
+    db_item = Opex(**item.model_dump())
     db.add(db_item)
     db.commit()
     db.refresh(db_item)