feat: migrate secret management to datastore proto and tink

app/build.gradle.kts

@@ -1,7 +1,17 @@
+import com.google.protobuf.gradle.*
+
+configurations.all {
+    resolutionStrategy {
+        force("com.google.protobuf:protobuf-javalite:${libs.versions.protobuf.get()}")
+        force("com.google.protobuf:protobuf-kotlin-lite:${libs.versions.protobuf.get()}")
+    }
+}
+
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.ksp)
+    alias(libs.plugins.protobuf)
 }
 
 android {
@@ -39,6 +49,13 @@ android {
         compose = true
         buildConfig  = true
     }
+    sourceSets {
+        getByName("main") {
+            proto {
+                srcDir("src/main/proto")
+            }
+        }
+    }
 }
 
 dependencies {
@@ -72,6 +89,11 @@ dependencies {
     implementation(libs.androidx.lifecycle.viewmodel.ktx)
     implementation(libs.androidx.lifecycle.viewmodel.compose)
 
+    // DataStore + Proto + Tink
+    implementation(libs.datastore.proto)
+    implementation(libs.protobuf.kotlin.lite)
+    implementation(libs.tink.android)
+
     // DataStore
     implementation(libs.androidx.datastore.preferences)
 
@@ -99,5 +121,22 @@ dependencies {
 
     // animations
     implementation(libs.androidx.compose.animation)
+}
 
-}
+protobuf {
+    protoc {
+        artifact = libs.protobuf.protoc.get().toString()
+    }
+    generateProtoTasks {
+        all().configureEach {          // no "task ->" here
+            builtins {
+                id("java") {
+                    option("lite")
+                }
+                id("kotlin") {
+                    option("lite")
+                }
+            }
+        }
+    }
+}