feat: full backend (untested)

backend/tests/conftest.py

@@ -0,0 +1,16 @@
+import pytest
+
+
+@pytest.fixture
+def sample_ics():
+    return """BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Test//Test//EN
+BEGIN:VEVENT
+DTSTART:20260106T150000Z
+DTEND:20260106T160000Z
+SUMMARY:Meeting
+UID:test-1
+DTSTAMP:20260101T000000Z
+END:VEVENT
+END:VCALENDAR"""