Fix calendar recurrence controls

tests/test_calendar_rrule.py

@@ -76,3 +76,84 @@ async def test_create_event_without_rrule_is_single():
         assert ev is not None and (ev.rrule or "") == ""
     finally:
         db.close()
+
+
+async def test_update_event_can_clear_rrule():
+    from src.tool_implementations import do_manage_calendar
+
+    owner = "tester-" + uuid.uuid4().hex[:6]
+    created = await do_manage_calendar(json.dumps({
+        "action": "create_event",
+        "summary": "Repeating standup",
+        "dtstart": "2026-07-01T14:00:00Z",
+        "rrule": "FREQ=WEEKLY;BYDAY=WE",
+    }), owner=owner)
+    assert created.get("exit_code", 0) == 0, created
+
+    updated = await do_manage_calendar(json.dumps({
+        "action": "update_event",
+        "uid": created["uid"],
+        "rrule": "",
+    }), owner=owner)
+    assert updated.get("exit_code", 0) == 0, updated
+
+    db = _TS()
+    try:
+        ev = db.query(CalendarEvent).filter(CalendarEvent.uid == created["uid"]).first()
+        assert ev is not None
+        assert (ev.rrule or "") == ""
+    finally:
+        db.close()
+
+
+async def test_update_event_can_clear_rrule_with_repeat_none_alias():
+    from src.tool_implementations import do_manage_calendar
+
+    owner = "tester-" + uuid.uuid4().hex[:6]
+    created = await do_manage_calendar(json.dumps({
+        "action": "create_event",
+        "summary": "Repeating review",
+        "dtstart": "2026-07-01T15:00:00Z",
+        "rrule": "FREQ=WEEKLY;BYDAY=WE",
+    }), owner=owner)
+    assert created.get("exit_code", 0) == 0, created
+
+    updated = await do_manage_calendar(json.dumps({
+        "action": "update_event",
+        "uid": created["uid"],
+        "repeat": "none",
+    }), owner=owner)
+    assert updated.get("exit_code", 0) == 0, updated
+
+    db = _TS()
+    try:
+        ev = db.query(CalendarEvent).filter(CalendarEvent.uid == created["uid"]).first()
+        assert ev is not None
+        assert (ev.rrule or "") == ""
+    finally:
+        db.close()
+
+
+async def test_list_events_exposes_rrule_for_repeating_events():
+    from src.tool_implementations import do_manage_calendar
+
+    owner = "tester-" + uuid.uuid4().hex[:6]
+    rrule = "FREQ=WEEKLY;BYDAY=WE"
+    created = await do_manage_calendar(json.dumps({
+        "action": "create_event",
+        "summary": "Weekly sync",
+        "dtstart": "2026-07-01T14:00:00Z",
+        "rrule": rrule,
+    }), owner=owner)
+    assert created.get("exit_code", 0) == 0, created
+
+    listed = await do_manage_calendar(json.dumps({
+        "action": "list_events",
+        "start": "2026-07-01T00:00:00Z",
+        "end": "2026-07-02T00:00:00Z",
+    }), owner=owner)
+    assert listed.get("exit_code", 0) == 0, listed
+    matches = [ev for ev in listed["events"] if ev["uid"] == created["uid"]]
+    assert matches
+    assert matches[0]["rrule"] == rrule
+    assert f"repeats({rrule})" in listed["response"]