Fit this lamp: 4 alarms, full data model, knock snooze, server use

Decode DP127 as 48 bytes (4 alarms), plus DP128, DP107 and DP126, from Tuya's
data model. Add day switches, alarm and sunset controls, a knock sensor on PA18,
display schedule, bedtime fade, radio timer and grouped web UI. Pin LibreTiny
v1.14.0 for the OTA restart fix. Ship the patched UART as an external component
so a server needs only a short YAML.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

components/uart/uart_component_host.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#ifdef USE_HOST
+
+#include "esphome/core/component.h"
+#include "esphome/core/log.h"
+#include "uart_component.h"
+
+namespace esphome::uart {
+
+class HostUartComponent final : public UARTComponent, public Component {
+ public:
+  virtual ~HostUartComponent();
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override { return setup_priority::BUS; }
+  void write_array(const uint8_t *data, size_t len) override;
+  bool peek_byte(uint8_t *data) override;
+  bool read_array(uint8_t *data, size_t len) override;
+  size_t available() override;
+  UARTFlushResult flush() override;
+  void set_name(std::string port_name) { port_name_ = port_name; };
+
+ protected:
+  void update_error_(const std::string &error);
+  void check_logger_conflict() override {}
+  std::string port_name_;
+  std::string first_error_;
+  int file_descriptor_ = -1;
+  bool has_peek_{false};
+  uint8_t peek_byte_;
+};
+
+}  // namespace esphome::uart
+#endif  // USE_HOST