feat: Enhance project and scenario creation with monitoring metrics

- Added monitoring metrics for project creation success and error handling in `ProjectRepository`.
- Implemented similar monitoring for scenario creation in `ScenarioRepository`.
- Refactored `run_monte_carlo` function in `simulation.py` to include timing and success/error metrics.
- Introduced new CSS styles for headers, alerts, and navigation buttons in `main.css` and `projects.css`.
- Created a new JavaScript file for navigation logic to handle chevron buttons.
- Updated HTML templates to include new navigation buttons and improved styling for buttons.
- Added tests for reporting service and routes to ensure proper functionality and access control.
- Removed unused imports and optimized existing test files for better clarity and performance.

tests/conftest.py

@@ -3,8 +3,10 @@ from __future__ import annotations
 from collections.abc import Callable, Iterator
 
 import pytest
+import pytest_asyncio
 from fastapi import FastAPI, Request
 from fastapi.testclient import TestClient
+from httpx import ASGITransport, AsyncClient
 from sqlalchemy import create_engine
 from sqlalchemy.engine import Engine
 from sqlalchemy.orm import sessionmaker
@@ -19,6 +21,7 @@ from routes.projects import router as projects_router
 from routes.scenarios import router as scenarios_router
 from routes.imports import router as imports_router
 from routes.exports import router as exports_router
+from routes.reports import router as reports_router
 from services.importers import ImportIngestionService
 from services.unit_of_work import UnitOfWork
 from services.session import AuthSession, SessionTokens
@@ -56,6 +59,7 @@ def app(session_factory: sessionmaker) -> FastAPI:
     application.include_router(scenarios_router)
     application.include_router(imports_router)
     application.include_router(exports_router)
+    application.include_router(reports_router)
 
     def _override_uow() -> Iterator[UnitOfWork]:
         with UnitOfWork(session_factory=session_factory) as uow:
@@ -108,6 +112,13 @@ def client(app: FastAPI) -> Iterator[TestClient]:
         test_client.close()
 
 
+@pytest_asyncio.fixture()
+async def async_client(app: FastAPI) -> AsyncClient:
+    return AsyncClient(
+        transport=ASGITransport(app=app), base_url="http://testserver"
+    )
+
+
 @pytest.fixture()
 def unit_of_work_factory(session_factory: sessionmaker) -> Callable[[], UnitOfWork]:
     def _factory() -> UnitOfWork: