Android tablet remote UI: styling pass, color picker, arrange mode indicator, connection gating

- Button styling standardization with green ring state indicators (Connect, Rescan, Log, Clear Layout, Reset ALL)
- Input field labels with proper DP-based padding and spacing
- Feedback & title widget color picker with 7-color palette and persistence layer
- Font weight selection for text widgets (deferred visual implementation)
- Hide/Show and Reset Size buttons in context menu
- Flashing pink border around entire app when Arrange mode is ON (500ms fade in/out cycle)
- Arrange button disabled until connected to desktop app, with alpha indicator
- WidgetLayoutState now persists color and fontWeight properties
- Arrange mode visual debugging with smooth fade animation instead of harsh strobe

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

remote-client-android/app/build.gradle

@@ -0,0 +1,26 @@
+plugins {
+    id 'com.android.application'
+}
+
+android {
+    namespace 'com.virtualcontroller.remote'
+    compileSdk 34
+
+    defaultConfig {
+        applicationId "com.virtualcontroller.remote"
+        minSdk 24
+        targetSdk 34
+        versionCode 1
+        versionName "0.1-stage1"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+}
+
+dependencies {
+    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'com.squareup.okhttp3:okhttp:4.12.0'
+}