Initial commit: VesiscanBasic Android app

Port of MedilightV2 iOS app to Android with Kotlin + Jetpack Compose.
Includes BLE connectivity, NIRS/Piezo sensor modes, Rive animations,
interactive measurement history charts, and foldable device support.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

build.gradle.kts

@@ -0,0 +1,6 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.kotlin.android) apply false
+    alias(libs.plugins.kotlin.compose) apply false
+}