fix(sync): backfill address_mismatch for orders missing blue dot

Orders synced before address_mismatch was deployed had stale 0 values,
causing missing blue dots in the dashboard. Adds startup backfill from
stored address JSON + recomputes on each sync for ALREADY_IMPORTED orders.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

api/app/services/sqlite_service.py

@@ -1172,6 +1172,48 @@ async def update_order_partner_data(order_number: str, partner_data: dict):
         await db.close()
 
 
+async def update_gomag_addresses_batch(updates: list[dict]):
+    """Update GoMag addresses and recompute address_mismatch for a batch of orders.
+
+    Each dict: {order_number, adresa_livrare_gomag, adresa_facturare_gomag}
+    """
+    if not updates:
+        return
+    from ..services.sync_service import _addr_match
+    db = await get_sqlite()
+    try:
+        for u in updates:
+            order_number = u["order_number"]
+            livr_gomag = u.get("adresa_livrare_gomag")
+            fact_gomag = u.get("adresa_facturare_gomag")
+            # Update GoMag addresses
+            await db.execute("""
+                UPDATE orders SET
+                    adresa_livrare_gomag = COALESCE(?, adresa_livrare_gomag),
+                    adresa_facturare_gomag = COALESCE(?, adresa_facturare_gomag),
+                    updated_at = datetime('now')
+                WHERE order_number = ?
+            """, (livr_gomag, fact_gomag, order_number))
+            # Recompute address_mismatch from stored addresses
+            cursor = await db.execute(
+                "SELECT adresa_livrare_gomag, adresa_livrare_roa, "
+                "adresa_facturare_gomag, adresa_facturare_roa FROM orders WHERE order_number = ?",
+                (order_number,)
+            )
+            row = await cursor.fetchone()
+            if row and (row[1] or row[3]):  # has at least one ROA address
+                livr_ok = _addr_match(row[0], row[1])
+                fact_ok = _addr_match(row[2], row[3])
+                new_val = 1 if (not livr_ok or not fact_ok) else 0
+                await db.execute(
+                    "UPDATE orders SET address_mismatch = ? WHERE order_number = ?",
+                    (new_val, order_number)
+                )
+        await db.commit()
+    finally:
+        await db.close()
+
+
 async def get_orders_missing_anaf() -> list[dict]:
     """Get orders with cod_fiscal_roa set but no ANAF data (for backfill)."""
     db = await get_sqlite()