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/static/js/dashboard.js

@@ -13,21 +13,32 @@ let _pollInterval = null;
 let _lastSyncStatus = null;
 let _lastRunId = null;
 let _currentRunId = null;
+let _pollIntervalMs = 5000; // default, overridden from settings
+let _knownLastRunId = null; // track last_run.run_id to detect missed syncs
 
 // ── Init ──────────────────────────────────────────
 
-document.addEventListener('DOMContentLoaded', () => {
+document.addEventListener('DOMContentLoaded', async () => {
+    await initPollInterval();
     loadSchedulerStatus();
     loadDashOrders();
     startSyncPolling();
     wireFilterBar();
 });
 
+async function initPollInterval() {
+    try {
+        const data = await fetchJSON('/api/settings');
+        const sec = parseInt(data.dashboard_poll_seconds) || 5;
+        _pollIntervalMs = sec * 1000;
+    } catch(e) {}
+}
+
 // ── Smart Sync Polling ────────────────────────────
 
 function startSyncPolling() {
     if (_pollInterval) clearInterval(_pollInterval);
-    _pollInterval = setInterval(pollSyncStatus, 30000);
+    _pollInterval = setInterval(pollSyncStatus, _pollIntervalMs);
     pollSyncStatus(); // immediate first call
 }
 
@@ -37,6 +48,12 @@ async function pollSyncStatus() {
         updateSyncPanel(data);
         const isRunning = data.status === 'running';
         const wasRunning = _lastSyncStatus === 'running';
+
+        // Detect missed sync completions via last_run.run_id change
+        const newLastRunId = data.last_run?.run_id || null;
+        const missedSync = !isRunning && !wasRunning && _knownLastRunId && newLastRunId && newLastRunId !== _knownLastRunId;
+        _knownLastRunId = newLastRunId;
+
         if (isRunning && !wasRunning) {
             // Switched to running — speed up polling
             clearInterval(_pollInterval);
@@ -44,7 +61,10 @@ async function pollSyncStatus() {
         } else if (!isRunning && wasRunning) {
             // Sync just completed — slow down and refresh orders
             clearInterval(_pollInterval);
-            _pollInterval = setInterval(pollSyncStatus, 30000);
+            _pollInterval = setInterval(pollSyncStatus, _pollIntervalMs);
+            loadDashOrders();
+        } else if (missedSync) {
+            // Sync completed while we weren't watching (e.g. auto-sync) — refresh orders
             loadDashOrders();
         }
         _lastSyncStatus = data.status;