fix(agent): install helpers off the main thread and offer sign-in only after the install

.gitattributes

@@ -10,3 +10,4 @@ tools/mangoapp/mangoapp text eol=lf
 app/src/main/assets/desktop-removal/*.json text eol=lf
 app/src/main/assets/desktop-removal/*.txt text eol=lf
 *.pdf binary
+app/src/main/assets/agent/* text eol=lf

app/src/main/java/com/droiddeck/launcher/agent/AgentSetup.kt

@@ -63,7 +63,6 @@ object AgentSetup {
         val command = when (step) {
             Step.CONNECTION -> return
             Step.INSTALL -> {
-                installHelpers(app)
                 listOf("sh", "-c", "set -e; export DEBIAN_FRONTEND=noninteractive; " +
                     "apt-get install -y --no-install-recommends git gh adb curl ca-certificates python3; ${harness.install}")
             }
@@ -76,6 +75,7 @@ object AgentSetup {
         detail.remove(step)
         Thread({
             val result = runCatching {
+                if (step == Step.INSTALL) installHelpers(app)
                 val child = AgentHost.guest(app, command).start()
                 child.outputStream.close()
                 child.inputStream.bufferedReader().forEachLine { line ->

app/src/main/java/com/droiddeck/launcher/ui/AgentSetupView.kt

@@ -61,7 +61,8 @@ internal fun AgentSetupView(modifier: Modifier, onDone: () -> Unit = {}) {
                     },
                     title, detail, divider = index < steps.lastIndex,
                 ) {
-                    if (status == Status.TODO || status == Status.FAILED) {
+                    val blocked = step == Step.SIGN_IN && AgentSetup.status[Step.INSTALL] != Status.DONE
+                    if ((status == Status.TODO || status == Status.FAILED) && !blocked) {
                         val label = stringResource(if (status == Status.FAILED) R.string.agent_setup_retry else action(step))
                         val run = { if (step == Step.CONNECTION) pair(context) else AgentSetup.run(context, step) }
                         if (step.required) PrimaryButton(label, compact = true, onClick = run) else SecondaryButton(label, compact = true, onClick = run)