Fix stop toggle not reaching OpenWhispr on key release

Add --clearmodifiers to xdotool so held Ctrl/Alt don't corrupt the
simulated Ctrl+` into Ctrl+Alt+`. Also add 50ms delay before stop
to let key release propagate to X11.

https://claude.ai/code/session_01XKYC1basxdwtHy71tky7xm

openwhispr-ptt.py

@@ -13,6 +13,7 @@ Usage: sudo python3 openwhispr-ptt.py
 import subprocess
 import signal
 import sys
+import time
 
 try:
     import evdev
@@ -35,9 +36,14 @@ is_recording = False
 
 
 def send_whispr_toggle():
+    """Send Ctrl+` to OpenWhispr via xdotool.
+
+    Uses --clearmodifiers to release any physically held keys first,
+    so the simulated Ctrl+` isn't mangled into Ctrl+Alt+`.
+    """
     try:
         subprocess.run(
-            ["xdotool", "key", WHISPR_HOTKEY],
+            ["xdotool", "key", "--clearmodifiers", WHISPR_HOTKEY],
             timeout=2,
             capture_output=True,
         )
@@ -108,6 +114,7 @@ def main():
 
         # Stop when either released
         if is_recording and not (ctrl_held and alt_held):
+            time.sleep(0.05)  # Let key release propagate to X11
             send_whispr_toggle()
             is_recording = False
             print("\033[0m○ Stopped", flush=True)