dlms_push is a complete rewrite of the component using common esphome structure. The new component no longer uses Gurux library so it is significantly smaller and easier to maintain.
Update README (EN/CZ) to document dlms_push, replace xt211 examples, and expose new config options (show_log, receive_timeout, custom_pattern).
Also update esphome-smartmeter.yaml accordingly.
Refactored XT211Uart to handle cases where the lock is not initialized, preventing null dereference. Added fallback to base read_array for non-hardware UARTs in read_array_quick_, improving compatibility with BLE-backed UARTs.
Tomer27cz