Fix bugs, add auto-refresh, quick-complete tasks, and every-N-day routines

- Fix bot auth: merge duplicate on_ready handlers so session restore runs (#13)
- Fix push notifications: pass Uint8Array directly as applicationServerKey (#6)
- Show specific conflict reason on schedule save instead of generic error (#17)
- Add inline checkmark button to complete tasks on routines timeline (#18)
- Add visibility-change + 60s polling auto-refresh to routines, meds, tasks (#15)
- Add every-N-day routine scheduling: schema, API, scheduler, and UI (#16)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

synculous-client/src/app/dashboard/medications/page.tsx

@@ -91,24 +91,36 @@ export default function MedicationsPage() {
   const [isLoading, setIsLoading] = useState(true);
   const [tick, setTick] = useState(0);
 
+  const fetchData = async () => {
+    try {
+      const [medsData, todayData, adherenceData] = await Promise.all([
+        api.medications.list(),
+        api.medications.getToday().catch(() => []),
+        api.medications.getAdherence(30).catch(() => []),
+      ]);
+      setMedications(medsData);
+      setTodayMeds(todayData);
+      setAdherence(adherenceData);
+    } catch (err) {
+      console.error('Failed to fetch medications:', err);
+    }
+  };
+
   useEffect(() => {
-    const fetchData = async () => {
-      try {
-        const [medsData, todayData, adherenceData] = await Promise.all([
-          api.medications.list(),
-          api.medications.getToday().catch(() => []),
-          api.medications.getAdherence(30).catch(() => []),
-        ]);
-        setMedications(medsData);
-        setTodayMeds(todayData);
-        setAdherence(adherenceData);
-      } catch (err) {
-        console.error('Failed to fetch medications:', err);
-      } finally {
-        setIsLoading(false);
-      }
+    fetchData().finally(() => setIsLoading(false));
+  }, []);
+
+  // Re-fetch when tab becomes visible or every 60s
+  useEffect(() => {
+    const onVisible = () => {
+      if (document.visibilityState === 'visible') fetchData();
+    };
+    document.addEventListener('visibilitychange', onVisible);
+    const poll = setInterval(fetchData, 60_000);
+    return () => {
+      document.removeEventListener('visibilitychange', onVisible);
+      clearInterval(poll);
     };
-    fetchData();
   }, []);
 
   // Auto-refresh grouping every 60s