LiveTextConversationAsync fails due to Cannot extract voices from a non-audio request.

[vorburger]

Steps to reproduce

1. Create README.md with example usage instructions #802
2. mvn compile exec:java -Dexec.mainClass="com.google.genai.examples.LiveTextConversationAsync"

[INFO] --- exec:3.5.0:java (default-cli) @ google-genai-examples ---
Using Gemini Developer API
SLF4J(W): No SLF4J providers were found.
SLF4J(W): Defaulting to no-operation (NOP) logger implementation
SLF4J(W): See https://www.slf4j.org/codes.html#noProviders for further details.
Live session closed with code: 1007 and reason: Cannot extract voices from a non-audio request.
An error occurred: com.google.genai.errors.GenAiIOException: WebSocket closed unexpectedly: Cannot extract voices from a non-audio request.
java.util.concurrent.ExecutionException: com.google.genai.errors.GenAiIOException: WebSocket closed unexpectedly: Cannot extract voices from a non-audio request.
        at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396)
        at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2073)
        at com.google.genai.examples.LiveTextConversationAsync.main(LiveTextConversationAsync.java:99)
        at org.codehaus.mojo.exec.ExecJavaMojo.doMain(ExecJavaMojo.java:375)
        at org.codehaus.mojo.exec.ExecJavaMojo.doExec(ExecJavaMojo.java:364)
        at org.codehaus.mojo.exec.ExecJavaMojo.lambda$execute$0(ExecJavaMojo.java:286)
        at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: com.google.genai.errors.GenAiIOException: WebSocket closed unexpectedly: Cannot extract voices from a non-audio request.
        at com.google.genai.AsyncLive$GenAiWebSocketClient.onClose(AsyncLive.java:255)
        at org.java_websocket.client.WebSocketClient.onWebsocketClose(WebSocketClient.java:688)
        at org.java_websocket.WebSocketImpl.closeConnection(WebSocketImpl.java:557)
        at org.java_websocket.WebSocketImpl.eot(WebSocketImpl.java:612)
        at org.java_websocket.client.WebSocketClient.run(WebSocketClient.java:546)
        ... 1 more

Based on https://ai.google.dev/gemini-api/docs/live, it looks like it may be intentional that this used to but now no longer works?

If that is the case, and this is not just a temporary situation which is intended to be made working again in the future, then the LiveTextConversationAsync and related currently broken examples should perhaps be removed?

[vorburger]

• LiveTextToTextGenerationAsync is likewise broken currently
• LiveAudioConversationAsync still works (cool!)
• LiveTextToAudioTranscriptionAsync also still works (but should probably output actual audio, instead of a wall of Some audio bytes in inline_data...?)