Initial commit: InTono — app KMP per l'apprendimento musicale

App Kotlin Multiplatform (Android/iOS/Desktop) con Compose Multiplatform:
controllo intonazione (YIN), pratica guidata, metronomo, ear training,
sfide, scansione spartiti via AI, spartiti bundled e pentagramma con
glifi tipografici, travature, battute e spaziatura proporzionale.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

video/.agents/skills/remotion-best-practices/rules/sfx.md

@@ -0,0 +1,26 @@
+---
+name: sfx
+description: Including sound effects
+metadata:
+  tags: sfx, sound, effect, audio
+---
+
+To include a sound effect, use the `<Audio>` tag:
+
+```tsx
+import { Audio } from "@remotion/sfx";
+
+<Audio src={"https://remotion.media/whoosh.wav"} />;
+```
+
+The following sound effects are available:
+
+- `https://remotion.media/whoosh.wav`
+- `https://remotion.media/whip.wav`
+- `https://remotion.media/page-turn.wav`
+- `https://remotion.media/switch.wav`
+- `https://remotion.media/mouse-click.wav`
+- `https://remotion.media/shutter-modern.wav`
+- `https://remotion.media/shutter-old.wav`
+
+For more sound effects, search the internet. A good resource is https://github.com/kapishdima/soundcn/tree/main/assets.