feat: forward UART parsed boot info to main log window

UartMonitorWindow now accepts on_log callback. When boot info
(IP, version) is parsed from serial output, it:
- Appears in the UART window's own log (prefix [UART])
- Forwards to main window's log panel via on_log callback
- Unified [UART] prefix across both windows (was [BOOT] in
  UART window, [UART] Boot detected: in main log)

src/gui/main_window.py

@@ -1164,7 +1164,7 @@ class MainWindow(ctk.CTk):
         self._uart_monitor = UartMonitor(port, self._config.serial_baudrate)
         self._uart_monitor.on_line = lambda line: self._log_message(f"  [UART] {line}")
         self._uart_monitor.on_boot_info = lambda info: (
-            self._log_message(f"  [UART] Boot detected: IP={info.ip_address}, Ver={info.version}")
+            self._log_message(f"  [UART] IP={info.ip_address}, Ver={info.version}")
             if info.ip_address or info.version else None
         )
         self._uart_monitor.on_error = lambda e: self._log_message(f"  [UART] Error: {e}")
@@ -1216,7 +1216,10 @@ class MainWindow(ctk.CTk):
         """Open the UART Monitor window."""
         port = self._port_var.get()
         baudrate = self._config.serial_baudrate if self._config else 115200
-        self._uart_window = UartMonitorWindow(self, port=port, baudrate=baudrate)
+        self._uart_window = UartMonitorWindow(
+            self, port=port, baudrate=baudrate,
+            on_log=self._log_message,
+        )
 
     def _test_serial_version(self) -> None:
         """Test serial port by sending 'ver()' command and parsing response."""

src/gui/widgets.py

@@ -786,6 +786,7 @@ class UartMonitorWindow(ctk.CTkToplevel):
         master: ctk.CTk | ctk.CTkToplevel,
         port: str,
         baudrate: int = 115200,
+        on_log: Callable[[str], None] | None = None,
     ) -> None:
         """Initialize the UART monitor window.
 
@@ -793,6 +794,7 @@ class UartMonitorWindow(ctk.CTkToplevel):
             master: Parent window (MainWindow).
             port: Serial port device path (e.g., '/dev/ttyUSB0').
             baudrate: Baud rate for serial communication.
+            on_log: Optional callback to forward parsed events to main log.
         """
         super().__init__(master)
         self.title("UART Monitor")
@@ -800,6 +802,8 @@ class UartMonitorWindow(ctk.CTkToplevel):
         self.minsize(480, 360)
         self.protocol("WM_DELETE_WINDOW", self._on_close)
 
+        self._on_log = on_log
+
         self._port = port
         self._baudrate = baudrate
         self._monitor: UartMonitor | None = None
@@ -996,7 +1000,11 @@ class UartMonitorWindow(ctk.CTkToplevel):
         if info.version:
             parts.append(f"Ver={info.version}")
         if parts:
-            self.after(0, lambda: self._log(f"[BOOT] {' '.join(parts)}\n"))
+            msg = f"[UART] {' '.join(parts)}"
+            self.after(0, lambda: self._log(f"{msg}\n"))
+            # Forward to main window log
+            if self._on_log:
+                self.after(0, lambda: self._on_log(msg))
 
     def _on_error(self, error: str) -> None:
         self.after(0, lambda: self._log_error(error))