feat(partner): detect and resync partner mismatches on already-imported orders

Detects PF↔PJ transitions and CUI changes after import; auto-resyncs
uninvoiced orders (max 5/cycle) and shows visual alert for invoiced ones.
- SQLite: partner_mismatch column + batch helpers
- sync_service: detection loop + _resync_partner_for_order
- dashboard: red dot + attention card indicator
- modal: alert with contextual message and resync button

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

api/app/routers/sync.py

@@ -544,6 +544,7 @@ async def order_detail(order_number: str):
         "anaf_cod_fiscal_adjusted": order.get("anaf_cod_fiscal_adjusted") == 1,
         "anaf_denumire_mismatch": order.get("anaf_denumire_mismatch") == 1,
         "denumire_anaf": order.get("denumire_anaf"),
+        "partner_mismatch": order.get("partner_mismatch") == 1,
     }
     # Parse JSON address strings
     for key in ("adresa_livrare_gomag", "adresa_facturare_gomag",
@@ -579,6 +580,80 @@ async def retry_order(order_number: str):
     return result
 
 
+@router.post("/api/orders/{order_number}/resync-partner")
+async def resync_partner(order_number: str):
+    """Manual partner resync for invoiced orders with partner_mismatch=1.
+
+    Auto-resync handles uninvoiced orders during sync loop.
+    This endpoint is for edge case: operator wants to fix an already-invoiced order.
+    """
+    detail = await sqlite_service.get_order_detail(order_number)
+    if not detail:
+        raise HTTPException(status_code=404, detail="Comanda nu a fost gasita")
+
+    order_data = detail["order"]
+    if not order_data.get("partner_mismatch"):
+        return {"success": False, "message": "Comanda nu are mismatch de partener"}
+
+    if sync_service._sync_lock.locked():
+        return {"success": False, "message": "Sync in curs — asteapta finalizarea"}
+
+    stored = {
+        "id_comanda": order_data.get("id_comanda"),
+        "id_partener": order_data.get("id_partener"),
+        "denumire_roa": order_data.get("denumire_roa"),
+        "cod_fiscal_gomag": order_data.get("cod_fiscal_gomag"),
+        "factura_numar": order_data.get("factura_numar"),
+    }
+
+    # Download order from GoMag to get current data
+    import tempfile
+    from ..services import order_reader, gomag_client
+    app_settings = await sqlite_service.get_app_settings()
+    gomag_key = app_settings.get("gomag_api_key") or None
+    gomag_shop = app_settings.get("gomag_api_shop") or None
+
+    from datetime import datetime, timedelta
+    order_date_str = order_data.get("order_date", "")
+    try:
+        order_date = datetime.fromisoformat(order_date_str.replace("Z", "+00:00")).date()
+    except (ValueError, AttributeError):
+        order_date = datetime.now().date() - timedelta(days=1)
+
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        try:
+            days_back = (datetime.now().date() - order_date).days + 2
+            await gomag_client.download_orders(
+                tmp_dir, days_back=days_back,
+                api_key=gomag_key, api_shop=gomag_shop, limit=200,
+            )
+        except Exception as e:
+            return {"success": False, "message": f"Eroare download GoMag: {e}"}
+
+        target_order = None
+        orders, _ = order_reader.read_json_orders(json_dir=tmp_dir)
+        for o in orders:
+            if str(o.number) == str(order_number):
+                target_order = o
+                break
+
+    if not target_order:
+        return {"success": False, "message": f"Comanda {order_number} nu a fost gasita in GoMag API"}
+
+    run_id = f"resync_{order_number}"
+    try:
+        await sync_service._resync_partner_for_order(
+            order=target_order,
+            stored=stored,
+            app_settings=app_settings,
+            run_id=run_id,
+        )
+        return {"success": True, "message": "Partener actualizat in ROA"}
+    except Exception as e:
+        logger.error(f"Manual resync failed for {order_number}: {e}")
+        return {"success": False, "message": str(e)}
+
+
 @router.get("/api/orders/by-sku/{sku}/pending")
 async def get_pending_orders_for_sku(sku: str):
     """Get SKIPPED orders that contain the given SKU."""