Improve timestamp handling and event navigation

server/monlet_server/api/outbox.py

@@ -6,6 +6,7 @@ from ..cursors import decode, decode_datetime, encode
 from ..db import get_session
 from ..models import NotificationOutbox
 from ..schemas import NotificationOutboxItem, OutboxPage
+from ..timeutil import to_utc
 
 router = APIRouter()
 
@@ -38,7 +39,7 @@ async def list_outbox(
     next_cursor = None
     if len(rows) > limit:
         rows = rows[:limit]
-        next_cursor = encode(rows[-1].created_at.isoformat(), rows[-1].id)
+        next_cursor = encode(to_utc(rows[-1].created_at).isoformat(), rows[-1].id)
     return OutboxPage(
         items=[
             NotificationOutboxItem(
@@ -48,9 +49,9 @@ async def list_outbox(
                 incident_id=str(r.incident_id),
                 event_type=r.event_type,
                 attempts=r.attempts,
-                next_attempt_at=r.next_attempt_at,
+                next_attempt_at=to_utc(r.next_attempt_at) if r.next_attempt_at else None,
                 last_error=r.last_error,
-                updated_at=r.updated_at,
+                updated_at=to_utc(r.updated_at),
             )
             for r in rows
         ],