Set up project skeleton (milestone 1)

- Architecture and feature overview in docs/ARCHITECTURE.md
- Gradle 9.8 / AGP 9.4 / Kotlin 2.4 with version catalog and convention plugins
- Modules :app, :core:*, :device-profiles, :feature:* (placeholder screens)
- Flavors core (no INTERNET, enforced by a build check) and full
- Material You theme, navigation, expert mode and dry-run settings (DataStore)
- Pixel 8-10 device detection, unit tests, GPLv3 license, English README with Obtainium badge

Co-Authored-By: Claude Opus 5.5 <[email protected]>

core/ui/build.gradle.kts

@@ -0,0 +1,12 @@
+plugins {
+    alias(libs.plugins.pixelwall.android.library)
+    alias(libs.plugins.pixelwall.android.compose)
+}
+
+android {
+    namespace = "org.pixelwall.core.ui"
+}
+
+dependencies {
+    api(project(":core:model"))
+}

core/ui/src/main/kotlin/org/pixelwall/core/ui/component/PlaceholderScreen.kt

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+package org.pixelwall.core.ui.component
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.heading
+import androidx.compose.ui.semantics.semantics
+import androidx.compose.ui.unit.dp
+import org.pixelwall.core.ui.R
+
+/** Platzhalter für Bereiche, deren Meilenstein noch aussteht. */
+@Composable
+fun PlaceholderScreen(title: String, description: String, modifier: Modifier = Modifier) {
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .padding(24.dp),
+        verticalArrangement = Arrangement.spacedBy(12.dp),
+    ) {
+        Text(
+            text = title,
+            style = MaterialTheme.typography.headlineSmall,
+            modifier = Modifier.semantics { heading() },
+        )
+        Text(text = description, style = MaterialTheme.typography.bodyLarge)
+        Text(
+            text = stringResource(R.string.placeholder_coming_soon),
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+    }
+}

core/ui/src/main/kotlin/org/pixelwall/core/ui/component/PrivilegeChip.kt

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+package org.pixelwall.core.ui.component
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.AdminPanelSettings
+import androidx.compose.material.icons.outlined.Terminal
+import androidx.compose.material.icons.outlined.TouchApp
+import androidx.compose.material3.AssistChip
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.contentDescription
+import androidx.compose.ui.semantics.semantics
+import org.pixelwall.core.model.PrivilegeLevel
+import org.pixelwall.core.ui.R
+
+/** Zeigt die Berechtigungsstufe an, die eine Einstellung benötigt. */
+@Composable
+fun PrivilegeChip(level: PrivilegeLevel, modifier: Modifier = Modifier) {
+    val label = stringResource(level.labelRes())
+    val description = stringResource(R.string.privilege_required, label)
+    AssistChip(
+        onClick = {},
+        enabled = true,
+        label = { Text(label) },
+        leadingIcon = {
+            Icon(
+                imageVector = when (level) {
+                    PrivilegeLevel.NORMAL -> Icons.Outlined.TouchApp
+                    PrivilegeLevel.ADB_GRANT -> Icons.Outlined.AdminPanelSettings
+                    PrivilegeLevel.SHIZUKU -> Icons.Outlined.Terminal
+                },
+                contentDescription = null,
+            )
+        },
+        modifier = modifier.semantics { contentDescription = description },
+    )
+}
+
+fun PrivilegeLevel.labelRes(): Int = when (this) {
+    PrivilegeLevel.NORMAL -> R.string.privilege_normal
+    PrivilegeLevel.ADB_GRANT -> R.string.privilege_adb
+    PrivilegeLevel.SHIZUKU -> R.string.privilege_shizuku
+}

core/ui/src/main/kotlin/org/pixelwall/core/ui/theme/Theme.kt

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+package org.pixelwall.core.ui.theme
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+
+private val LightFallback = lightColorScheme(
+    primary = Color(0xFF2B5EA7),
+    secondary = Color(0xFF555F71),
+    tertiary = Color(0xFF6E5676),
+)
+
+private val DarkFallback = darkColorScheme(
+    primary = Color(0xFFA8C8FF),
+    secondary = Color(0xFFBDC7DC),
+    tertiary = Color(0xFFDABDE2),
+)
+
+/** Material You: dynamische Farben sind ab minSdk 34 immer verfügbar; Fallback nur für Previews. */
+@Composable
+fun PixelwallTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit,
+) {
+    val context = LocalContext.current
+    val colorScheme = when {
+        dynamicColor && darkTheme -> dynamicDarkColorScheme(context)
+        dynamicColor -> dynamicLightColorScheme(context)
+        darkTheme -> DarkFallback
+        else -> LightFallback
+    }
+    MaterialTheme(colorScheme = colorScheme, content = content)
+}

core/ui/src/main/res/values-de/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="privilege_normal">Normal</string>
+    <string name="privilege_adb">ADB-Freigabe</string>
+    <string name="privilege_shizuku">Shizuku</string>
+    <string name="privilege_required">Benötigt: %1$s</string>
+    <string name="placeholder_coming_soon">Dieser Bereich ist noch nicht umgesetzt.</string>
+</resources>

core/ui/src/main/res/values/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="privilege_normal">Normal</string>
+    <string name="privilege_adb">ADB grant</string>
+    <string name="privilege_shizuku">Shizuku</string>
+    <string name="privilege_required">Requires: %1$s</string>
+    <string name="placeholder_coming_soon">This area is not implemented yet.</string>
+</resources>