fix: decode opus manually and use json audio transcription

bot.py

@@ -10,8 +10,6 @@ from pathlib import Path
 import discord
 from discord import app_commands
 from discord.ext import commands, voice_recv
-from discord.ext.voice_recv import opus as voice_recv_opus
-from discord.opus import OpusError
 from dotenv import load_dotenv
 
 import config
@@ -19,28 +17,8 @@ from helpers import chunk_message, command_channel_error
 from openrouter_client import summarize, transcribe
 from voice import MeetingRecorder
 
-log = logging.getLogger(__name__)
-
-_original_decode_packet = voice_recv_opus.PacketDecoder._decode_packet
-
-
-def _safe_decode_packet(self, packet):
-    try:
-        return _original_decode_packet(self, packet)
-    except OpusError as exc:
-        log.warning("Dropping corrupted opus packet for ssrc %s: %s", self.ssrc, exc)
-        if packet:
-            return packet, b""
-        try:
-            next_packet = self._buffer.peek_next()
-            if next_packet is not None:
-                return packet, self._decoder.decode(next_packet.decrypted_data, fec=True)
-            return packet, self._decoder.decode(None, fec=False)
-        except Exception:
-            return packet, b""
-
-
-voice_recv_opus.PacketDecoder._decode_packet = _safe_decode_packet
+logging.getLogger("discord.ext.voice_recv.reader").setLevel(logging.WARNING)
+logging.getLogger("discord.ext.voice_recv.gateway").setLevel(logging.WARNING)
 
 load_dotenv()