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 server and three independently installable app surfaces this checkout
-// the app that talks to it. They are built in parallel -- this list is the
+// produces. They are built in parallel -- this list is the set, not a
-// set, not a sequence, so nothing here should be read as an order.
+// 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

AGENTS.md

@@ -148,8 +148,12 @@ Module-by-module intent is in `docs/PLAN.md`'s "Backend layout".
     pans, flings or lays out a long list.
 - `.dev-updater.ron` — what Dev Updater builds here: the server (run as
   `service: Managed(…)`, supervised by Dev Updater's own implementation
-  rather than a script kept here) and the APK, in parallel. It points at
+  rather than a script kept here), the Compose app, the Rust/iris benchmark
-  `resources.ron`, which is *ours* rather than Dev Updater's — it names
+  APK, and the shell APK, in parallel. The iris benchmark is its own
+  `iris-bench` component rooted at `app-rust/`; its release mode is the arm64
+  phone build with the `transcript-screen bench` features. The file points at
+  `resources.ron`, which is *ours* rather than
+  Dev Updater's — it names
   `~/.local/share/ai-app` and `~/.config/ai-app` so the Uninstall dialog can
   offer them. Note what deleting the config directory takes with it: the CA
   under `certs`, which is the one-way door. **Stop** on the server card stops