Fix potential crash when backing up attachment.

This reverts commit 2c47cd2422.

app/build.gradle.kts

@@ -21,8 +21,8 @@ plugins {
 
 apply(from = "static-ips.gradle.kts")
 
-val canonicalVersionCode = 1567
-val canonicalVersionName = "7.51.1"
+val canonicalVersionCode = 1582
+val canonicalVersionName = "7.56.2"
 val currentHotfixVersion = 0
 val maxHotfixVersions = 100
 
@@ -237,7 +237,8 @@ android {
     buildConfigField("String", "STRIPE_BASE_URL", "\"https://api.stripe.com/v1\"")
     buildConfigField("String", "STRIPE_PUBLISHABLE_KEY", "\"pk_live_6cmGZopuTsV8novGgJJW9JpC00vLIgtQ1D\"")
     buildConfigField("boolean", "TRACING_ENABLED", "false")
-    buildConfigField("boolean", "MESSAGE_BACKUP_RESTORE_ENABLED", "false")
+    buildConfigField("boolean", "MESSAGE_BACKUP_RESTORE_ENABLED", "true")
+    buildConfigField("boolean", "LINK_DEVICE_UX_ENABLED", "true")
 
     ndk {
       abiFilters += listOf("armeabi-v7a", "arm64-v8a", "x86", "x86_64")
@@ -317,6 +318,7 @@ android {
       isMinifyEnabled = false
       matchingFallbacks += "debug"
       buildConfigField("String", "BUILD_VARIANT_TYPE", "\"Spinner\"")
+      buildConfigField("boolean", "LINK_DEVICE_UX_ENABLED", "true")
     }
 
     create("perf") {
@@ -606,8 +608,7 @@ dependencies {
   implementation(libs.androidx.credentials)
   implementation(libs.androidx.credentials.compat)
 
-  "playImplementation"(project(":billing"))
-  "nightlyImplementation"(project(":billing"))
+  implementation(project(":billing"))
 
   "spinnerImplementation"(project(":spinner"))
 
@@ -638,6 +639,9 @@ dependencies {
   testImplementation(testFixtures(project(":libsignal-service")))
   testImplementation(testLibs.espresso.core)
   testImplementation(testLibs.kotlinx.coroutines.test)
+  testImplementation(libs.androidx.compose.ui.test.junit4)
+
+  "perfImplementation"(libs.androidx.compose.ui.test.manifest)
 
   androidTestImplementation(platform(libs.androidx.compose.bom))
   androidTestImplementation(libs.androidx.compose.ui.test.junit4)