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>

scheduler/daemon.py

@@ -108,6 +108,8 @@ def check_medication_reminders():
 def check_routine_reminders():
     """Check for scheduled routines due now and send notifications."""
     try:
+        from datetime import date as date_type
+
         schedules = postgres.select("routine_schedules", where={"remind": True})
 
         for schedule in schedules:
@@ -117,13 +119,30 @@ def check_routine_reminders():
 
             now = _user_now_for(routine["user_uuid"])
             current_time = now.strftime("%H:%M")
-            current_day = now.strftime("%a").lower()
+            today = now.date()
 
             if current_time != schedule.get("time"):
                 continue
-            days = schedule.get("days", [])
-            if current_day not in days:
-                continue
+
+            frequency = schedule.get("frequency", "weekly")
+            if frequency == "every_n_days":
+                start = schedule.get("start_date")
+                interval = schedule.get("interval_days")
+                if start and interval:
+                    start_d = (
+                        start
+                        if isinstance(start, date_type)
+                        else datetime.strptime(str(start), "%Y-%m-%d").date()
+                    )
+                    if (today - start_d).days < 0 or (today - start_d).days % interval != 0:
+                        continue
+                else:
+                    continue
+            else:
+                current_day = now.strftime("%a").lower()
+                days = schedule.get("days", [])
+                if current_day not in days:
+                    continue
 
             user_settings = notifications.getNotificationSettings(routine["user_uuid"])
             if user_settings: