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.

templates/partials/reports/scenario_actions.html

@@ -1,12 +1,12 @@
 <div class="scenario-actions">
   <a
-    href="{{ request.url_for('reports.scenario_distribution_page', scenario_id=scenario.id) }}"
+    href="{{ request.url_for('reports.scenario_distribution_page', scenario_id=item.scenario.id) }}"
     class="button button-secondary"
   >
     View Distribution
   </a>
   <a
-    href="{{ request.url_for('reports.scenario_distribution', scenario_id=scenario.id) }}"
+    href="{{ request.url_for('reports.scenario_distribution', scenario_id=item.scenario.id) }}"
     class="button button-secondary"
   >
     Download JSON