[zwave_proxy] Use new socket wake infrastructure to reduce latency, convert to C++17 namespace style (#12135)

Co-authored-by: J. Nick Koston <nick@koston.org>

esphome/components/zwave_proxy/__init__.py

@@ -41,3 +41,6 @@ async def to_code(config):
     await cg.register_component(var, config)
     await uart.register_uart_device(var, config)
     cg.add_define("USE_ZWAVE_PROXY")
+
+    # Request UART to wake the main loop when data arrives for low-latency processing
+    uart.request_wake_loop_on_rx()

esphome/components/zwave_proxy/zwave_proxy.cpp

@@ -5,8 +5,7 @@
 #include "esphome/core/log.h"
 #include "esphome/core/util.h"
 
-namespace esphome {
-namespace zwave_proxy {
+namespace esphome::zwave_proxy {
 
 static const char *const TAG = "zwave_proxy";
 
@@ -144,6 +143,7 @@ void ZWaveProxy::zwave_proxy_request(api::APIConnection *api_connection, api::en
       this->api_connection_ = api_connection;
       ESP_LOGV(TAG, "API connection is now subscribed");
       break;
+
     case api::enums::ZWAVE_PROXY_REQUEST_TYPE_UNSUBSCRIBE:
       if (this->api_connection_ != api_connection) {
         ESP_LOGV(TAG, "API connection is not subscribed");
@@ -151,6 +151,7 @@ void ZWaveProxy::zwave_proxy_request(api::APIConnection *api_connection, api::en
       }
       this->api_connection_ = nullptr;
       break;
+
     default:
       ESP_LOGW(TAG, "Unknown request type: %d", type);
       break;
@@ -342,5 +343,4 @@ bool ZWaveProxy::response_handler_() {
 
 ZWaveProxy *global_zwave_proxy = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-}  // namespace zwave_proxy
-}  // namespace esphome
+}  // namespace esphome::zwave_proxy

esphome/components/zwave_proxy/zwave_proxy.h

@@ -8,8 +8,7 @@
 
 #include <array>
 
-namespace esphome {
-namespace zwave_proxy {
+namespace esphome::zwave_proxy {
 
 static constexpr size_t MAX_ZWAVE_FRAME_SIZE = 257;  // Maximum Z-Wave frame size
 
@@ -89,5 +88,4 @@ class ZWaveProxy : public uart::UARTDevice, public Component {
 
 extern ZWaveProxy *global_zwave_proxy;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-}  // namespace zwave_proxy
-}  // namespace esphome
+}  // namespace esphome::zwave_proxy