feat: add Alt+P keyboard shortcut for PiP pop-out

- Alt+P toggles Picture-in-Picture floating recorder on /voice page
- Works from both main window and PiP window
- Footer shows new shortcut hint when PiP is supported
- Browser extension Ctrl+Shift+V now opens PWA /voice page (with PiP)
  instead of extension-local voice.html

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

browser-extension/background.js

@@ -293,13 +293,14 @@ chrome.contextMenus.onClicked.addListener(async (info, tab) => {
 
 // --- Keyboard shortcut handler ---
 
-chrome.commands.onCommand.addListener((command) => {
+chrome.commands.onCommand.addListener(async (command) => {
   if (command === 'open-voice-recorder') {
+    const settings = await getSettings();
     chrome.windows.create({
-      url: chrome.runtime.getURL('voice.html'),
+      url: `${settings.host}/voice`,
       type: 'popup',
-      width: 380,
+      width: 400,
-      height: 520,
+      height: 600,
       focused: true,
     });
   }

browser-extension/popup.js

@@ -300,13 +300,14 @@ document.getElementById('unlockBtn').addEventListener('click', async () => {
   }
 });
 
-document.getElementById('voiceBtn').addEventListener('click', () => {
+document.getElementById('voiceBtn').addEventListener('click', async () => {
-  // Open voice recorder in a small popup window
+  // Open rVoice PWA page in a popup window (supports PiP pop-out)
+  const settings = await getSettings();
   chrome.windows.create({
-    url: chrome.runtime.getURL('voice.html'),
+    url: `${settings.host}/voice`,
     type: 'popup',
-    width: 380,
+    width: 400,
-    height: 520,
+    height: 600,
     focused: true,
   });
   // Close the current popup

src/app/voice/page.tsx

@@ -666,10 +666,16 @@ export default function VoicePage() {
         e.preventDefault();
         saveToRNotes();
       }
+      // Alt+P toggles PiP
+      if (e.altKey && e.code === 'KeyP') {
+        e.preventDefault();
+        if (pipWindow) closePiP();
+        else openPiP();
+      }
     };
     window.addEventListener('keydown', handler);
     return () => window.removeEventListener('keydown', handler);
-  }, [toggleRecording, saveToRNotes, state]);
+  }, [toggleRecording, saveToRNotes, state, pipWindow, openPiP, closePiP]);
 
   // Keyboard events inside PiP window
   useEffect(() => {
@@ -687,12 +693,17 @@ export default function VoicePage() {
         ke.preventDefault();
         saveToRNotes();
       }
+      // Alt+P closes PiP from within PiP window
+      if (ke.altKey && ke.code === 'KeyP') {
+        ke.preventDefault();
+        closePiP();
+      }
     };
     pipWindow.document.addEventListener('keydown', handler);
     return () => {
       try { pipWindow.document.removeEventListener('keydown', handler); } catch {}
     };
-  }, [pipWindow, toggleRecording, saveToRNotes, state]);
+  }, [pipWindow, toggleRecording, saveToRNotes, state, closePiP]);
 
   // --- Render ---
 
@@ -1032,8 +1043,14 @@ export default function VoicePage() {
         <div className="flex gap-3">
           <kbd className="px-1.5 py-0.5 bg-slate-900 border border-slate-700 rounded text-[10px]">Space</kbd>
           <span>record</span>
-          <kbd className="px-1.5 py-0.5 bg-slate-900 border border-slate-700 rounded text-[10px]">Ctrl+Enter</kbd>
+          <kbd className="px-1.5 py-0.5 bg-slate-900 border border-slate-700 rounded text-[10px]">Ctrl+&#x23CE;</kbd>
           <span>save</span>
+          {pipSupported && (
+            <>
+              <kbd className="px-1.5 py-0.5 bg-slate-900 border border-slate-700 rounded text-[10px]">Alt+P</kbd>
+              <span>pop out</span>
+            </>
+          )}
         </div>
         <a href="/" className="hover:text-amber-400 transition-colors">rNotes.online</a>
       </footer>