Generate a baseline profile for release builds

Cold starts ran unoptimised: no profileinstaller dependency and no
profile in the bundle, so ART interpreted Compose on first launch
(class verification measured at 128 bytecodes/s in an emulator ANR).

Add the androidx.baselineprofile producer module with an AOSP managed
device, a generator covering startup plus the four detail tabs, and
commit the generated baseline and startup profiles.

android/app/build.gradle.kts

@@ -7,6 +7,7 @@ plugins {
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.kotlin.serialization)
     alias(libs.plugins.ksp)
+    alias(libs.plugins.baselineprofile)
 }
 
 // Release signing credentials, loaded from android/keystore.properties (gitignored).
@@ -117,4 +118,10 @@ dependencies {
     implementation(libs.coil.compose)
 
     implementation(libs.play.review.ktx)
+
+    // Installs the bundled baseline profile on devices that do not get it from Play.
+    implementation(libs.androidx.profileinstaller)
+
+    // Consumes the profile produced by :baselineprofile.
+    baselineProfile(project(":baselineprofile"))
 }