fix(sync): sticky exclusion for DELETED_IN_ROA orders

Orders deleted via "Sterge" button were re-imported on the next sync
because classify step only checked Oracle (sters=0), not SQLite status.
Adds a filter step after cancellation handling that drops orders
already marked DELETED_IN_ROA before validation. "Reimporta" remains
the explicit override.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

api/tests/test_sticky_deleted_filter.py

@@ -0,0 +1,140 @@
+"""
+Sticky DELETED_IN_ROA Filter Tests
+===================================
+Unit tests for get_deleted_in_roa_order_numbers() helper and integration
+test for the sticky-exclusion filter applied in sync_service before
+order classification.
+
+Run:
+    cd api && python -m pytest tests/test_sticky_deleted_filter.py -v
+"""
+
+import os
+import sys
+import tempfile
+
+import pytest
+
+pytestmark = pytest.mark.unit
+
+_tmpdir = tempfile.mkdtemp()
+os.environ.setdefault("FORCE_THIN_MODE", "true")
+os.environ.setdefault("SQLITE_DB_PATH", os.path.join(_tmpdir, "test_sticky_deleted.db"))
+os.environ.setdefault("ORACLE_DSN", "dummy")
+os.environ.setdefault("ORACLE_USER", "dummy")
+os.environ.setdefault("ORACLE_PASSWORD", "dummy")
+os.environ.setdefault("JSON_OUTPUT_DIR", _tmpdir)
+
+_api_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+if _api_dir not in sys.path:
+    sys.path.insert(0, _api_dir)
+
+from app import database
+from app.services import sqlite_service
+from app.constants import OrderStatus
+
+
+@pytest.fixture(autouse=True)
+async def _clean_orders():
+    """Ensure schema exists, clear orders table before each test."""
+    database.init_sqlite()
+    db = await database.get_sqlite()
+    try:
+        await db.execute("DELETE FROM orders")
+        await db.commit()
+    finally:
+        await db.close()
+    yield
+
+
+async def _insert_order(order_number: str, status: str, id_comanda: int | None = None):
+    db = await database.get_sqlite()
+    try:
+        await db.execute(
+            """
+            INSERT INTO orders (order_number, order_date, customer_name, status, id_comanda)
+            VALUES (?, ?, ?, ?, ?)
+            """,
+            (order_number, "2026-04-22", "Test Customer", status, id_comanda),
+        )
+        await db.commit()
+    finally:
+        await db.close()
+
+
+@pytest.mark.asyncio
+async def test_returns_empty_set_when_no_orders():
+    """Helper unit: empty table → empty set."""
+    result = await sqlite_service.get_deleted_in_roa_order_numbers()
+    assert result == set()
+
+
+@pytest.mark.asyncio
+async def test_returns_only_deleted_in_roa_status():
+    """Helper unit: filters only DELETED_IN_ROA, ignores other statuses."""
+    await _insert_order("ORD-1", OrderStatus.IMPORTED.value, id_comanda=100)
+    await _insert_order("ORD-2", OrderStatus.DELETED_IN_ROA.value)
+    await _insert_order("ORD-3", OrderStatus.CANCELLED.value)
+    await _insert_order("ORD-4", OrderStatus.ERROR.value)
+    await _insert_order("ORD-5", OrderStatus.DELETED_IN_ROA.value)
+    await _insert_order("ORD-6", OrderStatus.SKIPPED.value)
+
+    result = await sqlite_service.get_deleted_in_roa_order_numbers()
+    assert result == {"ORD-2", "ORD-5"}
+
+
+@pytest.mark.asyncio
+async def test_mark_order_deleted_then_helper_returns_it():
+    """Integration: mark_order_deleted_in_roa → helper picks it up."""
+    await _insert_order("ORD-100", OrderStatus.IMPORTED.value, id_comanda=500)
+
+    before = await sqlite_service.get_deleted_in_roa_order_numbers()
+    assert "ORD-100" not in before
+
+    await sqlite_service.mark_order_deleted_in_roa("ORD-100")
+
+    after = await sqlite_service.get_deleted_in_roa_order_numbers()
+    assert "ORD-100" in after
+
+
+@pytest.mark.asyncio
+async def test_filter_excludes_deleted_orders():
+    """Integration: simulates sync filter step.
+
+    Pre-mark ORD-2 as DELETED_IN_ROA, run the same filter logic from
+    sync_service:478-489, assert ORD-2 is excluded.
+    """
+    await _insert_order("ORD-1", OrderStatus.IMPORTED.value, id_comanda=100)
+    await _insert_order("ORD-2", OrderStatus.DELETED_IN_ROA.value)
+    await _insert_order("ORD-3", OrderStatus.IMPORTED.value, id_comanda=300)
+
+    incoming = [
+        type("O", (), {"number": "ORD-1", "date": "2026-04-22"})(),
+        type("O", (), {"number": "ORD-2", "date": "2026-04-22"})(),
+        type("O", (), {"number": "ORD-3", "date": "2026-04-22"})(),
+        type("O", (), {"number": "ORD-NEW", "date": "2026-04-22"})(),
+    ]
+
+    deleted_set = await sqlite_service.get_deleted_in_roa_order_numbers()
+    excluded = [o for o in incoming if o.number in deleted_set]
+    survivors = [o for o in incoming if o.number not in deleted_set]
+
+    assert {o.number for o in excluded} == {"ORD-2"}
+    assert {o.number for o in survivors} == {"ORD-1", "ORD-3", "ORD-NEW"}
+
+
+@pytest.mark.asyncio
+async def test_filter_with_no_deleted_is_noop():
+    """Integration: deleted_set empty → all orders pass through."""
+    await _insert_order("ORD-1", OrderStatus.IMPORTED.value, id_comanda=100)
+
+    incoming = [
+        type("O", (), {"number": "ORD-1", "date": "2026-04-22"})(),
+        type("O", (), {"number": "ORD-NEW", "date": "2026-04-22"})(),
+    ]
+
+    deleted_set = await sqlite_service.get_deleted_in_roa_order_numbers()
+    survivors = [o for o in incoming if o.number not in deleted_set]
+
+    assert deleted_set == set()
+    assert {o.number for o in survivors} == {"ORD-1", "ORD-NEW"}