feat(dashboard): auto-refresh after sync, configurable polling, extra filters

- Detect missed sync completions via last_run.run_id comparison
- Load polling interval from settings (dashboard_poll_seconds, default 5s)
- Add 1min/3min scheduler interval options
- Add 1zi/2zile period filter options
- New Dashboard settings card for polling interval

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/app/templates/dashboard.html

@@ -17,6 +17,8 @@
         <input type="checkbox" id="schedulerToggle" class="cursor-pointer" onchange="toggleScheduler()">
       </label>
       <select id="schedulerInterval" class="select-compact" onchange="updateSchedulerInterval()">
+        <option value="1">1 min</option>
+        <option value="3">3 min</option>
         <option value="5">5 min</option>
         <option value="10" selected>10 min</option>
         <option value="30">30 min</option>
@@ -49,6 +51,8 @@
         <div class="filter-bar" id="ordersFilterBar">
           <!-- Period dropdown -->
           <select id="periodSelect" class="select-compact">
+            <option value="1">1 zi</option>
+            <option value="2">2 zile</option>
             <option value="3">3 zile</option>
             <option value="7" selected>7 zile</option>
             <option value="30">30 zile</option>
@@ -200,5 +204,5 @@
 {% endblock %}
 
 {% block scripts %}
-<script src="{{ request.scope.get('root_path', '') }}/static/js/dashboard.js?v=14"></script>
+<script src="{{ request.scope.get('root_path', '') }}/static/js/dashboard.js?v=15"></script>
 {% endblock %}