Improve UX: hide console window and fade connection status

- Hide console window on compiled desktop app (console=False in spec)
- Add 20-second auto-fade to "Connected" status in OBS display
- Keep "Disconnected" status visible until reconnection
- Add PM2 deployment configuration and documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

server/nodejs/server.js

@@ -687,9 +687,11 @@ app.get('/display', (req, res) => {
             background: rgba(0, 0, 0, 0.8);
             border-radius: 5px;
             font-size: 0.9em;
+            transition: opacity 2s ease-out;
         }
         #status.connected { color: #4CAF50; }
         #status.disconnected { color: #f44336; }
+        #status.hidden { opacity: 0; pointer-events: none; }
         @keyframes slideIn {
             from { opacity: 0; transform: translateY(-10px); }
             to { opacity: 1; transform: translateY(0); }
@@ -761,6 +763,8 @@ app.get('/display', (req, res) => {
             }
         }
 
+        let statusHideTimeout = null;
+
         function connect() {
             const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
             const ws = new WebSocket(\`\${protocol}//\${window.location.host}/ws?room=\${encodeURIComponent(room)}\`);
@@ -768,6 +772,16 @@ app.get('/display', (req, res) => {
             ws.onopen = () => {
                 statusEl.textContent = '🟢 Connected';
                 statusEl.className = 'connected';
+
+                // Clear any existing timeout
+                if (statusHideTimeout) {
+                    clearTimeout(statusHideTimeout);
+                }
+
+                // Fade out after 20 seconds
+                statusHideTimeout = setTimeout(() => {
+                    statusEl.classList.add('hidden');
+                }, 20000);
             };
 
             ws.onmessage = (event) => {
@@ -780,6 +794,12 @@ app.get('/display', (req, res) => {
             };
 
             ws.onclose = () => {
+                // Clear hide timeout on disconnect
+                if (statusHideTimeout) {
+                    clearTimeout(statusHideTimeout);
+                    statusHideTimeout = null;
+                }
+
                 statusEl.textContent = '🔴 Disconnected';
                 statusEl.className = 'disconnected';
                 setTimeout(connect, 3000);