fix: restore canvas action bridge

apps/android/app/src/test/java/com/steipete/clawdis/node/protocol/ClawdisCanvasA2UIActionTest.kt

@@ -1,9 +1,24 @@
 package com.steipete.clawdis.node.protocol
 
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonObject
 import org.junit.Assert.assertEquals
 import org.junit.Test
 
 class ClawdisCanvasA2UIActionTest {
+  @Test
+  fun extractActionNameAcceptsNameOrAction() {
+    val nameObj = Json.parseToJsonElement("{\"name\":\"Hello\"}").jsonObject
+    assertEquals("Hello", ClawdisCanvasA2UIAction.extractActionName(nameObj))
+
+    val actionObj = Json.parseToJsonElement("{\"action\":\"Wave\"}").jsonObject
+    assertEquals("Wave", ClawdisCanvasA2UIAction.extractActionName(actionObj))
+
+    val fallbackObj =
+      Json.parseToJsonElement("{\"name\":\"  \",\"action\":\"Fallback\"}").jsonObject
+    assertEquals("Fallback", ClawdisCanvasA2UIAction.extractActionName(fallbackObj))
+  }
+
   @Test
   fun formatAgentMessageMatchesSharedSpec() {
     val msg =
@@ -32,4 +47,3 @@ class ClawdisCanvasA2UIActionTest {
     )
   }
 }
-