Expose Iris benchmark in Dev Updater

.dev-updater.ron

@@ -17,9 +17,9 @@ label: "AI Sessions",
 // three constants -- there is nothing here worth spawning a process for.
 resources: Ron("resources.ron"),
 
-// The two halves this checkout produces: the server a phone talks to, and
-// the app that talks to it. They are built in parallel -- this list is the
-// set, not a sequence, so nothing here should be read as an order.
+// The server and three independently installable app surfaces this checkout
+// produces. They are built in parallel -- this list is the set, not a
+// sequence, so nothing here should be read as an order.
 components: [
     Server(
         name: "server",
@@ -55,6 +55,17 @@ components: [
         // the terminal the QR would be printed on.
         enroll: "server/enroll-link.sh",
     ),
+    // The deterministic Rust/iris transcript benchmark. Its release build
+    // is arm64 by default and signed with the same machine-local key as the
+    // Compose app.
+    // `cwd` scopes APK discovery to app-rust, while commands containing a
+    // slash resolve from the project root, per Dev Updater's command model.
+    Apk(
+        name: "iris-bench",
+        modes: ["release", "debug"],
+        build: "app-rust/build-apk.sh",
+        cwd: "app-rust",
+    ),
     // E5 (RUST.md): app/shellApp packaged by the xtask instead of Gradle
     // (cargo ndk -> javac -> d8 -> aapt2 -> zipalign -> apksigner), signed
     // with the same release key as "app" above so the two can install