Add refusals tab to the order dashboard

Orders whose Nova Poshta status is a refusal (102/103/105/108) now show
only under «Отказы», whether or not they have a receipt. GET /orders takes
tab=no_receipt|has_receipt|refused instead of has_receipt. NP statuses are
also polled for orders that already have a receipt, until NP reports a
final status.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

backend/tests/test_orders_router.py

@@ -69,8 +69,8 @@ def _patch_orders_service(monkeypatch: pytest.MonkeyPatch) -> None:
     async def fake_sync(session: object, crm: object) -> None:
         return None
 
-    async def fake_list(session: object, *, has_receipt: bool) -> list[Order]:
-        return [] if has_receipt else [_order()]
+    async def fake_list(session: object, *, tab: str) -> list[Order]:
+        return [_order()] if tab == "no_receipt" else []
 
     async def fake_delete(session: object, order_id: str) -> Order | None:
         return _order(order_id) if order_id == "1" else None
@@ -132,7 +132,7 @@ class TestListOrders:
     ) -> None:
         app.dependency_overrides[get_current_user] = lambda: _user(role)
 
-        response = client.get("/api/v1/orders", params={"has_receipt": "false"})
+        response = client.get("/api/v1/orders", params={"tab": "no_receipt"})
 
         assert response.status_code == 200
         body = response.json()
@@ -142,14 +142,22 @@ class TestListOrders:
         assert body[0]["has_receipt"] is False
         assert body[0]["goods"][0]["sku"] == "SKU-1"
 
-    def test_has_receipt_tab_is_empty_for_now(self, client: TestClient) -> None:
+    @pytest.mark.parametrize("tab", ["has_receipt", "refused"])
+    def test_other_tabs_are_passed_to_service(self, client: TestClient, tab: str) -> None:
         app.dependency_overrides[get_current_user] = lambda: _user(UserRole.CASHIER)
 
-        response = client.get("/api/v1/orders", params={"has_receipt": "true"})
+        response = client.get("/api/v1/orders", params={"tab": tab})
 
         assert response.status_code == 200
         assert response.json() == []
 
+    def test_unknown_tab_is_rejected(self, client: TestClient) -> None:
+        app.dependency_overrides[get_current_user] = lambda: _user(UserRole.CASHIER)
+
+        response = client.get("/api/v1/orders", params={"tab": "bogus"})
+
+        assert response.status_code == 422
+
     def test_requires_authentication(self, client: TestClient) -> None:
         response = client.get("/api/v1/orders")
         assert response.status_code == 401

backend/tests/test_orders_service.py

@@ -7,10 +7,18 @@ from datetime import UTC, datetime
 from typing import Any
 
 import pytest
+from sqlalchemy.dialects import postgresql
 
 from app.db.models.order import Order
 from app.schemas.orders import OrderUpdateIn
-from app.services.orders import OrderEditError, _parse_crm_datetime, _to_kopecks, update_order
+from app.services.orders import (
+    OrderEditError,
+    OrderTab,
+    _parse_crm_datetime,
+    _to_kopecks,
+    list_orders,
+    update_order,
+)
 
 
 class TestToKopecks:
@@ -148,3 +156,37 @@ class TestUpdateOrder:
         assert asyncio.run(update_order(_FakeSession(None), "1", payload)) is None  # type: ignore[arg-type]
         deleted = _FakeSession(_order(is_deleted=True))
         assert asyncio.run(update_order(deleted, "1", payload)) is None  # type: ignore[arg-type]
+
+
+class _CapturingSession:
+    def __init__(self) -> None:
+        self.statement: Any = None
+
+    async def scalars(self, statement: Any) -> list[Order]:
+        self.statement = statement
+        return []
+
+
+def _list_where(tab: OrderTab) -> str:
+    """WHERE-часть запроса вкладки (SELECT перечисляет все колонки, в т.ч. receipt_created_at)."""
+    session = _CapturingSession()
+    asyncio.run(list_orders(session, tab=tab))  # type: ignore[arg-type]
+    sql = str(
+        session.statement.compile(
+            dialect=postgresql.dialect(), compile_kwargs={"literal_binds": True}
+        )
+    )
+    return sql.split("WHERE", 1)[1]
+
+
+class TestListOrders:
+    def test_refused_tab_filters_by_refusal_codes_only(self) -> None:
+        sql = _list_where(OrderTab.REFUSED)
+        assert "orders.np_status_code IN ('102', '103', '105', '108')" in sql
+        assert "receipt_created_at" not in sql
+
+    @pytest.mark.parametrize("tab", [OrderTab.NO_RECEIPT, OrderTab.HAS_RECEIPT])
+    def test_other_tabs_exclude_refusals(self, tab: OrderTab) -> None:
+        sql = _list_where(tab)
+        assert "NOT IN ('102', '103', '105', '108')" in sql
+        assert "receipt_created_at" in sql