fix: add missing send_voice() override to WhatsApp adapter

[duan78]

Summary

WhatsApp adapter (gateway/platforms/whatsapp.py) was missing a send_voice() override. All other media methods (send_image, send_image_file, send_video, send_document) were properly overridden to use _send_media_to_bridge(), but send_voice was missed.

This caused TTS audio files generated by the text_to_speech tool to be sent as plain text (e.g. 🔊 Audio: /path/to/file.ogg) instead of native WhatsApp voice notes.

Fix

Added send_voice() override following the exact same pattern as send_video():

async def send_voice(
    self,
    chat_id: str,
    audio_path: str,
    caption: Optional[str] = None,
    reply_to: Optional[str] = None,
    **kwargs,
) -> SendResult:
    """Send an audio file as a native WhatsApp voice message via bridge."""
    return await self._send_media_to_bridge(chat_id, audio_path, "audio", caption)

Related

• Same pattern as Matrix send_voice() fix ([Bug]: TTS doesn't work with Matrix (Synapse) because of missing Content-Length #4339)
• Consistent with existing media overrides in the adapter

Fixes #4979

[teknium1]

Thanks for the fix! The same send_voice() override already landed on main in commit ed76185 ("feat(whatsapp): implement send_voice for audio message delivery") via #12656, so this PR is now a no-op diff against current main. Closing as superseded — the behavior you fixed is in main today.

ed76185

[alt-glitch]

Likely duplicate of #13002 — same WhatsApp send_voice() fix already merged.

[alt-glitch]

Likely duplicate of #13002