feat: PATCH-Endpunkte fuer Szenario-Modifikatoren und -Einmalzahlungen

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

finance/app/routers/scenarios.py

@@ -181,6 +181,21 @@ def delete_modifier(scenario_id: int, mod_id: int,
     session.commit()
 
 
+@router.patch("/{scenario_id}/modifiers/{mod_id}", response_model=ModifierOut)
+def patch_modifier(scenario_id: int, mod_id: int, data: ModifierIn,
+                   session: Session = Depends(get_session)):
+    # Full-Body-Update: das Edit-Formular sendet immer alle Felder des Typs.
+    _get_scenario(session, scenario_id)
+    modifier = session.get(ScenarioModifier, mod_id)
+    if modifier is None or modifier.scenario_id != scenario_id:
+        raise HTTPException(404, "Modifikator nicht gefunden")
+    for key, value in data.model_dump().items():
+        setattr(modifier, key, value)
+    session.commit()
+    session.refresh(modifier)
+    return ModifierOut.model_validate(modifier)
+
+
 class ScenarioPlannedIn(BaseModel):
     name: str
     amount: Decimal
@@ -225,6 +240,21 @@ def delete_scenario_planned(scenario_id: int, item_id: int,
     session.commit()
 
 
+@router.patch("/{scenario_id}/planned/{item_id}", response_model=ScenarioPlannedOut)
+def patch_scenario_planned(scenario_id: int, item_id: int, data: ScenarioPlannedIn,
+                           session: Session = Depends(get_session)):
+    # Full-Body-Update, Muster patch_modifier.
+    _get_scenario(session, scenario_id)
+    item = session.get(ScenarioPlannedItem, item_id)
+    if item is None or item.scenario_id != scenario_id:
+        raise HTTPException(404, "Einmalzahlung nicht gefunden")
+    for key, value in data.model_dump().items():
+        setattr(item, key, value)
+    session.commit()
+    session.refresh(item)
+    return ScenarioPlannedOut.model_validate(item)
+
+
 @router.post("/{scenario_id}/project", response_model=ProjectionOut)
 def project_scenario(scenario_id: int, horizon_days: int | None = None,
                      start_date: date | None = None,