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/reports/scenario_comparison.html

@@ -2,9 +2,9 @@
 {% block title %}Scenario Comparison | CalMiner{% endblock %}
 
 {% block content %}
-  {% include "partials/reports_header.html" with context %}
+  {% include "partials/reports_header.html" %}
 
-  {% include "partials/reports/options_card.html" with options=include_options iterations=iterations percentiles=percentiles %}
+  {% include "partials/reports/options_card.html" %}
   <section class="report-filters">
     <div class="report-card">
       <h2>Compared Scenarios</h2>
@@ -104,7 +104,7 @@
             <span class="meta-label">Primary Resource</span>
             <span class="meta-value">{{ item.scenario.primary_resource or "—" }}</span>
           </div>
-          {% include "partials/reports/scenario_actions.html" with scenario=item.scenario %}
+          {% include "partials/reports/scenario_actions.html" %}
         </div>
 
         <div class="scenario-grid">
@@ -147,7 +147,7 @@
                   {% endfor %}
                 {% endif %}
               </p>
-              {% include "partials/reports/monte_carlo_table.html" with metrics=item.monte_carlo.metrics currency=item.scenario.currency or project.currency percentiles=percentiles %}
+              {% include "partials/reports/monte_carlo_table.html" %}
             {% else %}
               <p class="muted">No Monte Carlo data available for this scenario.</p>
               {% if item.monte_carlo and item.monte_carlo.notes %}