Add v9.1.1: Device registry and remote blocking system

- Implement DeviceRegistry for remote device management
- Add dashboard for device tracking and blocking
- Remote device blocking capability with admin control
- Support for device aliasing and notes
- Enhanced device management interface
- Dashboard with real-time device status
- Configurable registry URL in build config

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

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

dashboard/node_modules/pstree.remy/tests/fixtures/index.js

@@ -0,0 +1,13 @@
+const spawn = require('child_process').spawn;
+function run() {
+  spawn(
+    'sh',
+    ['-c', 'node -e "setInterval(() => console.log(`running`), 200)"'],
+    {
+      stdio: 'pipe',
+    }
+  );
+}
+
+var runCallCount = process.argv[2] || 1;
+for (var i = 0; i < runCallCount; i++) run();