feat(talk): add provider-agnostic config with legacy compatibility

apps/android/app/src/test/java/ai/openclaw/android/voice/TalkModeConfigParsingTest.kt

@@ -0,0 +1,59 @@
+package ai.openclaw.android.voice
+
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.jsonObject
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class TalkModeConfigParsingTest {
+  private val json = Json { ignoreUnknownKeys = true }
+
+  @Test
+  fun prefersNormalizedTalkProviderPayload() {
+    val talk =
+      json.parseToJsonElement(
+          """
+          {
+            "provider": "elevenlabs",
+            "providers": {
+              "elevenlabs": {
+                "voiceId": "voice-normalized"
+              }
+            },
+            "voiceId": "voice-legacy"
+          }
+          """.trimIndent(),
+        )
+        .jsonObject
+
+    val selection = TalkModeManager.selectTalkProviderConfig(talk)
+    assertNotNull(selection)
+    assertEquals("elevenlabs", selection?.provider)
+    assertTrue(selection?.normalizedPayload == true)
+    assertEquals("voice-normalized", selection?.config?.get("voiceId")?.jsonPrimitive?.content)
+  }
+
+  @Test
+  fun fallsBackToLegacyTalkFieldsWhenNormalizedPayloadMissing() {
+    val talk =
+      json.parseToJsonElement(
+          """
+          {
+            "voiceId": "voice-legacy",
+            "apiKey": "legacy-key"
+          }
+          """.trimIndent(),
+        )
+        .jsonObject
+
+    val selection = TalkModeManager.selectTalkProviderConfig(talk)
+    assertNotNull(selection)
+    assertEquals("elevenlabs", selection?.provider)
+    assertTrue(selection?.normalizedPayload == false)
+    assertEquals("voice-legacy", selection?.config?.get("voiceId")?.jsonPrimitive?.content)
+    assertEquals("legacy-key", selection?.config?.get("apiKey")?.jsonPrimitive?.content)
+  }
+}