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>

app/build.gradle.kts

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+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.kotlin.compose)
+}
+
+android {
+    namespace = "com.notemusicali"
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "com.notemusicali"
+        minSdk = 26
+        targetSdk = 35
+        versionCode = 1
+        versionName = "1.0"
+    }
+
+    signingConfigs {
+        create("release") {
+            val keystorePath = System.getenv("INTONO_KEYSTORE_PATH")
+            if (keystorePath != null) {
+                storeFile = file(keystorePath)
+                storePassword = System.getenv("INTONO_KEYSTORE_PASSWORD")
+                keyAlias = System.getenv("INTONO_KEY_ALIAS")
+                keyPassword = System.getenv("INTONO_KEY_PASSWORD")
+            }
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+            val keystorePath = System.getenv("INTONO_KEYSTORE_PATH")
+            if (keystorePath != null) {
+                signingConfig = signingConfigs.getByName("release")
+            }
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+
+    buildFeatures {
+        compose = true
+    }
+}
+
+dependencies {
+    implementation(project(":shared"))
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.androidx.activity.compose)
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.ui)
+    implementation(libs.androidx.material3)
+
+    debugImplementation(libs.androidx.ui.tooling)
+}

app/proguard-rules.pro

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+# ProGuard rules for InTono (NoteMusicali)
+
+# --- Kotlin ---
+-keepattributes *Annotation*
+-keepattributes Signature
+-keepattributes InnerClasses
+-keepattributes EnclosingMethod
+-keep class kotlin.Metadata { *; }
+-dontwarn kotlin.**
+
+# --- Kotlin Serialization ---
+-keepattributes RuntimeVisibleAnnotations
+-keep class kotlinx.serialization.** { *; }
+-keepclassmembers class * {
+    @kotlinx.serialization.Serializable <fields>;
+}
+-keepclassmembers @kotlinx.serialization.Serializable class * {
+    *** Companion;
+    *** serializer(...);
+    kotlinx.serialization.KSerializer serializer(...);
+}
+-keepclasseswithmembers class * {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+# --- Ktor ---
+-keep class io.ktor.** { *; }
+-dontwarn io.ktor.**
+-keep class io.ktor.client.engine.** { *; }
+-keepclassmembers class io.ktor.** { volatile <fields>; }
+
+# --- Coroutines ---
+-keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
+-keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
+-keepclassmembers class kotlinx.coroutines.** { volatile <fields>; }
+-dontwarn kotlinx.coroutines.**
+
+# --- Compose ---
+-keep class androidx.compose.** { *; }
+-dontwarn androidx.compose.**
+
+# --- Multiplatform Settings ---
+-keep class com.russhwolf.settings.** { *; }
+
+# --- App classes ---
+-keep class com.notemusicali.** { *; }
+
+# --- CameraX ---
+-keep class androidx.camera.** { *; }
+-dontwarn androidx.camera.**
+
+# --- Standard Android ---
+-keepclassmembers class * implements android.os.Parcelable {
+    public static final ** CREATOR;
+}
+-keepclassmembers class * implements java.io.Serializable {
+    static final long serialVersionUID;
+    private static final java.io.ObjectStreamField[] serialPersistentFields;
+    !static !transient <fields>;
+    private void writeObject(java.io.ObjectOutputStream);
+    private void readObject(java.io.ObjectInputStream);
+    java.lang.Object writeReplace();
+    java.lang.Object readResolve();
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-feature android:name="android.hardware.camera" android:required="false" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.NoteMusicali">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:theme="@style/Theme.NoteMusicali">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/notemusicali/MainActivity.kt

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+package com.notemusicali
+
+import android.Manifest
+import android.content.pm.PackageManager
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.systemBarsPadding
+import androidx.compose.material3.Surface
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.ui.Modifier
+import androidx.core.content.ContextCompat
+import com.notemusicali.navigation.AppNavigation
+import com.notemusicali.scores.ScoreProviderContext
+import com.notemusicali.scan.AppSettings
+import com.notemusicali.ui.theme.NoteMusicaliTheme
+import com.notemusicali.util.CrashHandler
+
+class MainActivity : ComponentActivity() {
+
+    private val requestPermissionLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { _ -> }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        CrashHandler.install()
+        AppSettings.migrateIfNeeded()
+        enableEdgeToEdge()
+        ScoreProviderContext.init(this, getExternalFilesDir(null))
+
+        val permissionsToRequest = mutableListOf<String>()
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO)
+            != PackageManager.PERMISSION_GRANTED
+        ) {
+            permissionsToRequest.add(Manifest.permission.RECORD_AUDIO)
+        }
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
+            != PackageManager.PERMISSION_GRANTED
+        ) {
+            permissionsToRequest.add(Manifest.permission.CAMERA)
+        }
+        permissionsToRequest.forEach { requestPermissionLauncher.launch(it) }
+
+        setContent {
+            NoteMusicaliTheme {
+                Surface(
+                    modifier = Modifier
+                        .fillMaxSize()
+                        .systemBarsPadding(),
+                    color = MaterialTheme.colorScheme.background,
+                ) {
+                    AppNavigation()
+                }
+            }
+        }
+    }
+}

app/src/main/res/drawable/ic_launcher_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <gradient
+        android:type="radial"
+        android:centerX="0.5"
+        android:centerY="0.5"
+        android:gradientRadius="60%p"
+        android:startColor="#2D1B69"
+        android:endColor="#0A0118" />
+</shape>

app/src/main/res/drawable/ic_launcher_foreground.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+
+    <!-- Subtle glow behind note -->
+    <path
+        android:fillColor="#33FFD700"
+        android:pathData="M54,54 m-22,0 a22,22 0,1 1,44 0 a22,22 0,1 1,-44 0" />
+
+    <!-- Decorative ring -->
+    <path
+        android:strokeColor="#22FFD700"
+        android:strokeWidth="0.5"
+        android:fillColor="#00000000"
+        android:pathData="M54,54 m-28,0 a28,28 0,1 1,56 0 a28,28 0,1 1,-56 0" />
+
+    <!-- Eighth note - gold -->
+    <path
+        android:fillColor="#FFD700"
+        android:pathData="M52,34 L52,68 C51.5,67.2 50.5,66.6 49,66.4 C45.5,65.8 42,67.5 41.5,70.2 C41,72.9 43.5,75.2 47,75.8 C50.5,76.4 53.5,74.8 54,72.2 L54,72 L54,46 L66,42 L66,38 Z" />
+
+    <!-- Flag -->
+    <path
+        android:fillColor="#FFD700"
+        android:pathData="M54,34 C58,36 62,40 60,46 L54,42 Z" />
+</vector>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/values/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">InTono</string>
+</resources>

app/src/main/res/values/themes.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="Theme.NoteMusicali" parent="android:Theme.Material.Light.NoActionBar" />
+</resources>