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/partials/controls.html

@@ -17,6 +17,22 @@
       <div class="meta">Max trade capital: {{ max_trade_capital_usd }}</div>
       <div class="meta">Max concurrent trades: {{ max_concurrent_trades }}</div>
     </article>
+    <article class="card">
+      <div class="label">Alerting</div>
+      <div class="meta">Status: {{ alerts_enabled }}</div>
+      <div class="meta">Channels: {{ alerts_channels }}</div>
+      <div class="meta">Min severity: {{ alerts_min_severity }}</div>
+      <div class="meta">Dedup window: {{ alerts_dedup_seconds }}s</div>
+      <div class="meta">Last result: {{ alerts_last_result }}</div>
+      <div class="meta">Last attempted: {{ alerts_last_attempted_at }}</div>
+      <div class="meta">Last success: {{ alerts_last_success_at }}</div>
+      <div class="meta">Last event: {{ alerts_last_event_title }}</div>
+      <div class="meta">Last error: {{ alerts_last_error }}</div>
+      {% if alerts_last_channel_results %} {% for item in
+      alerts_last_channel_results %}
+      <div class="meta">{{ item }}</div>
+      {% endfor %} {% endif %}
+    </article>
   </div>
 
   <div