Release all modifiers before sending clean Ctrl+grave sequence

Use explicit keyup ctrl alt super first, then the exact working
sequence: keydown ctrl, key grave, keyup ctrl.

https://claude.ai/code/session_01XKYC1basxdwtHy71tky7xm

openwhispr-ptt.py

@@ -38,18 +38,17 @@ is_recording = False
 def send_whispr_toggle():
     """Send Ctrl+` to OpenWhispr via xdotool.
 
-    We first release Alt (which we're physically holding), send Ctrl+grave,
-    then re-press Alt. This way OpenWhispr sees clean Ctrl+` without
-    the Alt modifier corrupting it.
+    Release all held modifiers first, then send the full
+    keydown ctrl, key grave, keyup ctrl sequence cleanly.
     """
     try:
         subprocess.run(
-            ["xdotool", "keyup", "alt"],
+            ["xdotool", "keyup", "ctrl", "alt", "super"],
             timeout=2,
             capture_output=True,
         )
         subprocess.run(
-            ["xdotool", "key", WHISPR_HOTKEY],
+            ["xdotool", "keydown", "ctrl", "key", "grave", "keyup", "ctrl"],
             timeout=2,
             capture_output=True,
         )