add copyright notice to tutorial-related files

Author: UrAvgCode

app/src/main/java/com/uravgcode/chooser/tutorial/domain/PageData.kt

@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2025 UrAvgCode
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * @author UrAvgCode
+ * @description Data class that defines the content structure for a single tutorial page.
+ */
+
 package com.uravgcode.chooser.tutorial.domain
 
 import androidx.annotation.DrawableRes

app/src/main/java/com/uravgcode/chooser/tutorial/domain/PagerContent.kt

@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2025 UrAvgCode
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * @author UrAvgCode
+ * @description A list of page data for the tutorial pager.
+ */
+
 package com.uravgcode.chooser.tutorial.domain
 
 import com.uravgcode.chooser.R

app/src/main/java/com/uravgcode/chooser/tutorial/presentation/TutorialScreen.kt

@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2025 UrAvgCode
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * @author UrAvgCode
+ * @description TutorialScreen displays tutorial content on first app start.
+ */
+
 package com.uravgcode.chooser.tutorial.presentation
 
 import androidx.compose.foundation.ExperimentalFoundationApi

app/src/main/java/com/uravgcode/chooser/tutorial/presentation/component/PageIndicator.kt

@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2025 UrAvgCode
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * @author UrAvgCode
+ * @description PageIndicator shows the current page position with animated indicators.
+ */
+
 package com.uravgcode.chooser.tutorial.presentation.component
 
 import androidx.compose.animation.core.animateDpAsState

app/src/main/java/com/uravgcode/chooser/tutorial/presentation/component/TutorialPage.kt

@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2025 UrAvgCode
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * @author UrAvgCode
+ * @description TutorialPage displays a tutorial page with an animated preview.
+ */
+
 package com.uravgcode.chooser.tutorial.presentation.component
 
 import androidx.annotation.DrawableRes