fix: stream Vivado output live, remove broken normalize_port

JTAG: Start hw_server explicitly (Windows needs it), then run Vivado
TCL with Popen + line-by-line stdout streaming via callback so user
can see Vivado progress in real-time (not just on failure).

COM: Remove normalize_port — pyserial >= 3.0 handles COM>=10 prefix
internally. The manual \\.\ prefix was causing PermissionError(13)
on Windows where pyserial's own handling conflicted.

src/gui/widgets.py

@@ -1075,8 +1075,7 @@ class UartMonitorWindow(ctk.CTkToplevel):
         def _bg_open() -> None:
             try:
                 import serial
-                from serial_monitor import normalize_port
-                ser = serial.Serial(normalize_port(self._port), self._baudrate, timeout=1)
+                ser = serial.Serial(self._port, self._baudrate, timeout=1)
                 ser.close()
                 self.after(0, self._on_open_success)
             except Exception as e: