Chore: Restructure Repository for SvelteKit

_old/core/ui/idle.ts

@@ -0,0 +1,23 @@
+import { store } from "@store/state.svelte";
+
+const IDLE_EVENTS = ["mousemove", "mousedown", "keydown", "touchstart", "wheel"] as const;
+
+export function mountIdleDetection(onIdle: () => void, onActive: () => void): () => void {
+  let timer: ReturnType<typeof setTimeout> | null = null;
+
+  function reset() {
+    if (timer) clearTimeout(timer);
+    const ms = (store.settings.idleTimeoutMin ?? 5) * 60 * 1000;
+    if (ms === 0) return;
+    timer = setTimeout(onIdle, ms);
+    onActive();
+  }
+
+  IDLE_EVENTS.forEach(e => window.addEventListener(e, reset, { passive: true }));
+  reset();
+
+  return () => {
+    if (timer) clearTimeout(timer);
+    IDLE_EVENTS.forEach(e => window.removeEventListener(e, reset));
+  };
+}