feat(core): add Electron runtime, services, and app composition

src/core/services/immersion-tracker/queue.ts

@@ -0,0 +1,19 @@
+import type { QueuedWrite } from './types';
+
+export function enqueueWrite(
+  queue: QueuedWrite[],
+  write: QueuedWrite,
+  queueCap: number,
+): {
+  dropped: number;
+  queueLength: number;
+} {
+  let dropped = 0;
+  if (queue.length >= queueCap) {
+    const overflow = queue.length - queueCap + 1;
+    queue.splice(0, overflow);
+    dropped = overflow;
+  }
+  queue.push(write);
+  return { dropped, queueLength: queue.length };
+}