Skip virtual keyboard devices (ydotoold) in device detection

find_keyboard() was matching ydotoold virtual device instead of the
real AT Translated Set 2 keyboard because evdev lists devices in
reverse order. Now skips devices with 'virtual' or 'ydotool' in name.

https://claude.ai/code/session_01XKYC1basxdwtHy71tky7xm

openwhispr-ptt.py

@@ -60,9 +60,13 @@ def send_whispr_toggle():
 
 
 def find_keyboard():
-    """Find the keyboard device."""
+    """Find the real physical keyboard device (not virtual devices)."""
     devices = [evdev.InputDevice(path) for path in evdev.list_devices()]
     for dev in devices:
+        # Skip virtual devices (ydotool, xdotool, etc.)
+        name_lower = dev.name.lower()
+        if "virtual" in name_lower or "ydotool" in name_lower:
+            continue
         caps = dev.capabilities(verbose=False)
         if ecodes.EV_KEY in caps:
             keys = caps[ecodes.EV_KEY]