test: FZA tests korrigiert (can_manual_time_entry, TimeEntryWithWarnings, CalDAV race fix)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/tests/test_fza.py

@@ -303,9 +303,15 @@ async def test_fza_cancel_approved_refunds(
     assert r3.status_code == 200, r3.text
     assert r3.json()["status"] == "cancelled"
 
-    # Rückbuchung prüfen
-    await db_session.refresh(ob)
-    taken_after_cancel = float(ob.taken_hours)
+    # Rückbuchung prüfen – frischen Query statt refresh (vermeidet Race mit CalDAV-Background-Task)
+    import asyncio
+    await asyncio.sleep(0.15)  # CalDAV fire-and-forget abwarten
+    await db_session.execute(text("SET LOCAL app.bypass_rls = 'on'"))
+    ob2 = await db_session.scalar(
+        select(OvertimeBalance).where(OvertimeBalance.user_id == emp_me["id"])
+        .execution_options(populate_existing=True)
+    )
+    taken_after_cancel = float(ob2.taken_hours)
     assert taken_after_cancel == pytest.approx(0.0, abs=0.1), f"Rückbuchung fehlgeschlagen, got {taken_after_cancel}"
 
 
@@ -355,20 +361,23 @@ async def test_time_entry_approval_updates_overtime_balance(
 ):
     """Nach Genehmigung eines Zeiteintrags wird OvertimeBalance.total_hours neu berechnet."""
     emp_me = (await client.get("/api/v1/auth/me", headers=fza_employee_headers)).json()
-    hr_me = (await client.get("/api/v1/auth/me", headers=fza_hr_headers)).json()
 
-    # Eintrag manuell anlegen (10h, 2h Überstunden bei 8h Soll)
+    # Manuelle Zeiterfassung für diesen User freischalten
+    emp_id = emp_me["id"]
+    r = await client.patch(f"/api/v1/users/{emp_id}", json={"can_manual_time_entry": True}, headers=fza_admin_headers)
+    assert r.status_code == 200, f"Manual entry freischalten fehlgeschlagen: {r.text}"
+
+    # Eintrag manuell anlegen (10h = 2h Überstunden bei 8h Soll-Tag)
     resp = await client.post("/api/v1/time/entries", json={
         "date": "2026-06-01",
         "start_time": "08:00",
         "end_time": "18:00",
         "break_minutes": 0,
     }, headers=fza_employee_headers)
-    # Kann 201 oder 200 sein je nach Implementation
-    assert resp.status_code in (200, 201), resp.text
-    entry_id = resp.json()["id"]
+    assert resp.status_code == 201, resp.text
+    entry_id = resp.json()["entry"]["id"]
 
-    # Genehmigen (HR != EMPLOYEE, Self-Approval ist geblockt)
+    # Genehmigen (HR, kein Self-Approval)
     r2 = await client.post(f"/api/v1/time/entries/{entry_id}/approve", headers=fza_hr_headers)
     assert r2.status_code == 200, r2.text
 
@@ -376,7 +385,7 @@ async def test_time_entry_approval_updates_overtime_balance(
     await db_session.execute(text("SET LOCAL app.bypass_rls = 'on'"))
     ob = await db_session.scalar(
         select(OvertimeBalance).where(OvertimeBalance.user_id == emp_me["id"])
+        .execution_options(populate_existing=True)
     )
-    if ob:
-        await db_session.refresh(ob)
+    assert ob is not None, "OvertimeBalance wurde nicht angelegt"
     assert ob.last_calculated is not None, "last_calculated sollte nach Genehmigung gesetzt sein"