feat: MAC lookup in scan FDB (API mac-locations, UI table, index)

Made-with: Cursor

internal/store/sql/003_scan_port_devices.sql

@@ -15,3 +15,6 @@ create index if not exists idx_scan_port_devices_scan_ip_if
 
 create index if not exists idx_scan_port_devices_scan_ip_mac
   on scan_port_devices (scan_id, ip, mac);
+
+create index if not exists idx_scan_port_devices_scan_mac
+  on scan_port_devices (scan_id, mac);

internal/store/sql/006_scan_port_devices_mac_index.sql

@@ -0,0 +1,3 @@
+-- Ускорение поиска MAC по scan_id (таблица FDB).
+create index if not exists idx_scan_port_devices_scan_mac
+  on scan_port_devices (scan_id, mac);