feat: add audit events and runtime state snapshots to database

- Introduced new tables for audit events and runtime state snapshots in the database schema.
- Created data classes for AuditRecord and RuntimeStateRecord to represent the new entities.
- Implemented AuditRepository and RuntimeStateRepository for inserting and retrieving records.
- Enhanced the dashboard to include an audit trail section, displaying recent audit events.
- Added tests for the new audit repository and runtime lifecycle functionalities.
- Updated settings validation to ensure proper configuration for alerting features.
- Integrated alert notifications across various components, including execution sequencer and loss limits.

web/templates/dashboard.html

@@ -60,6 +60,16 @@ head_scripts %}
 >
   {% include "partials/charts.html" %}
 </section>
+
+<section
+  id="audit-shell"
+  hx-get="{{ audit_endpoint }}"
+  hx-target="this"
+  hx-trigger="load, every 20s"
+  hx-swap="outerHTML"
+>
+  {% include "partials/audit.html" %}
+</section>
 {% endblock %} {% block scripts %}
 <script>
   window.arbitradeRenderCharts = (payload) => {