fix: show subscribed calendar event details

backend/calendar.py

@@ -18,6 +18,8 @@ from icalendar import Calendar
 MAX_ICS_BYTES = 2_000_000
 MAX_REDIRECTS = 3
 DEFAULT_RECURRENCE_LIMIT = 10_000
+MAX_DESCRIPTION_LENGTH = 2_000
+MAX_LOCATION_LENGTH = 500
 TIMEOUT_SECONDS = 10
 _ALLOWED_CONTENT_TYPES = {"text/calendar", "text/plain", "application/octet-stream"}
 
@@ -159,9 +161,13 @@ def _overlaps(start: datetime, end: datetime, window_start: datetime, window_end
 def _event_dict(event: Any, source_id: str, source: str, color: str, start: datetime, end: datetime, all_day: bool) -> dict:
     uid = str(event.get("uid") or "")
     title = str(event.get("summary") or "Untitled event").strip() or "Untitled event"
+    description = str(event.get("description") or "").strip()[:MAX_DESCRIPTION_LENGTH]
+    location = str(event.get("location") or "").strip()[:MAX_LOCATION_LENGTH]
     return {
         "id": f"{uid or title}:{start.isoformat()}",
         "title": title,
+        "description": description or None,
+        "location": location or None,
         "starts_at": start,
         "ends_at": end,
         "all_day": all_day,

tests/test_calendar_subscriptions.py

@@ -17,6 +17,8 @@ UID:one\r
 DTSTART:20260920T090000Z\r
 DTEND:20260920T100000Z\r
 SUMMARY:Meeting\r
+DESCRIPTION:Body line one\\nBody line two\r
+LOCATION:Meeting room\r
 END:VEVENT\r
 END:VCALENDAR\r
 """
@@ -148,6 +150,8 @@ def test_subscription_crud_refresh_events_and_stale_cache(client, monkeypatch):
     )
     assert events.status_code == 200
     assert events.json()["events"][0]["title"] == "Meeting"
+    assert events.json()["events"][0]["description"] == "Body line one\nBody line two"
+    assert events.json()["events"][0]["location"] == "Meeting room"
     assert events.json()["sources"][0]["stale"] is False
 
     refreshed = client.post(f"/api/v1/calendar-subscriptions/{body['id']}/refresh")
@@ -166,6 +170,26 @@ def test_subscription_crud_refresh_events_and_stale_cache(client, monkeypatch):
     assert client.delete(f"/api/v1/calendar-subscriptions/{body['id']}").status_code == 204
 
 
+def test_parser_bounds_large_event_text_fields():
+    oversized = ICS.replace(
+        b"DESCRIPTION:Body line one\\nBody line two",
+        b"DESCRIPTION:" + b"x" * 3_000,
+    ).replace(
+        b"LOCATION:Meeting room",
+        b"LOCATION:" + b"y" * 1_000,
+    )
+    event = parse_ics_events(
+        oversized,
+        "Work",
+        "#123456",
+        datetime(2026, 9, 20, tzinfo=UTC),
+        datetime(2026, 9, 21, tzinfo=UTC),
+        "UTC",
+    )[0]
+    assert event["description"] == "x" * 2_000
+    assert event["location"] == "y" * 500
+
+
 def test_events_validate_window_and_disabled_sources_are_skipped(client, monkeypatch):
     client = initialized(client)
     monkeypatch.setattr(