chore: Remove debug logging and pipecat-poc after E2EE fix confirmed working

- Remove setLevel(DEBUG) for livekit.agents/plugins (added for diagnostics)
- Remove periodic E2EE cryptor/participant state poll loop (no longer needed)
- Remove pipecat-poc/pipeline.py (POC never deployed, LiveKit approach confirmed)

E2EE bidirectional voice confirmed working in MAT-36.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pipecat-poc/pipeline.py

@@ -1,133 +0,0 @@
-"""Configurable voice pipeline using Pipecat.
-
-Builds a STT → LLM → TTS pipeline with context aggregators.
-Providers are selected via config (STT_PROVIDER, TTS_PROVIDER env vars).
-LLM uses OpenAI-compatible API via LiteLLM.
-"""
-
-import asyncio
-import logging
-
-import aiohttp
-
-from pipecat.frames.frames import LLMMessagesAppendFrame
-from pipecat.pipeline.pipeline import Pipeline
-from pipecat.pipeline.runner import PipelineRunner
-from pipecat.pipeline.task import PipelineParams, PipelineTask
-from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
-from pipecat.services.openai.llm import OpenAILLMService
-from pipecat.transports.livekit.transport import LiveKitParams, LiveKitTransport
-
-from config import Config
-from providers import create_stt, create_tts
-
-logger = logging.getLogger("pipecat-poc.pipeline")
-
-
-def _create_llm(cfg: Config):
-    """Create LLM service using OpenAI-compatible API (LiteLLM)."""
-    return OpenAILLMService(
-        base_url=cfg.llm.base_url,
-        api_key=cfg.llm.api_key,
-        model=cfg.llm.model,
-    )
-
-
-async def run_voice_pipeline(token: str, lk_room_name: str, cfg: Config):
-    """Run the Pipecat voice pipeline.
-
-    Args:
-        token: LiveKit JWT used to connect
-        lk_room_name: LiveKit room name
-        cfg: Application configuration
-    """
-    http_session = aiohttp.ClientSession()
-    stt = await create_stt(cfg.stt, http_session)
-    tts = await create_tts(cfg.tts, http_session)
-    llm = _create_llm(cfg)
-
-    transport = LiveKitTransport(
-        url=cfg.livekit.url,
-        token=token,
-        room_name=lk_room_name,
-        params=LiveKitParams(
-            audio_in_enabled=True,
-            audio_out_enabled=True,
-        ),
-    )
-
-    # Create context with system prompt and context aggregators
-    context = OpenAILLMContext(
-        messages=[{"role": "system", "content": cfg.voice.system_prompt}],
-    )
-    context_aggregator = llm.create_context_aggregator(context)
-
-    pipeline = Pipeline([
-        transport.input(),
-        stt,
-        context_aggregator.user(),       # TranscriptionFrame → user message in context
-        llm,
-        tts,
-        transport.output(),
-        context_aggregator.assistant(),   # LLM output → assistant message in context
-    ])
-
-    task = PipelineTask(
-        pipeline,
-        params=PipelineParams(
-            allow_interruptions=True,
-            enable_metrics=True,
-        ),
-    )
-
-    @transport.event_handler("on_first_participant_joined")
-    async def on_first_participant(transport_obj, participant):
-        logger.info("First participant joined: %s", participant)
-        await task.queue_frames([
-            LLMMessagesAppendFrame(
-                [{"role": "user", "content": cfg.voice.greeting}],
-                run_llm=True,
-            ),
-        ])
-
-    runner = PipelineRunner()
-    logger.info("Starting Pipecat pipeline (stt=%s, tts=%s, llm=%s)",
-                cfg.stt.provider, cfg.tts.provider, cfg.llm.model)
-    await runner.run(task)
-
-
-class VoicePipelineSession:
-    """Manages a single voice pipeline session lifecycle.
-
-    Wraps the Pipecat pipeline with start/stop semantics.
-    Used by bot_bridge.py to manage pipeline per Matrix call.
-    """
-
-    def __init__(self, token: str, lk_room_name: str, cfg: Config):
-        self.token = token
-        self.lk_room_name = lk_room_name
-        self.cfg = cfg
-        self._task: asyncio.Task | None = None
-
-    async def start(self):
-        """Start the voice pipeline in a background task."""
-        self._task = asyncio.create_task(self._run())
-        logger.info("Voice pipeline session started")
-
-    async def stop(self):
-        """Stop the voice pipeline."""
-        if self._task and not self._task.done():
-            self._task.cancel()
-            try:
-                await self._task
-            except asyncio.CancelledError:
-                pass
-        logger.info("Voice pipeline session stopped")
-
-    async def _run(self):
-        try:
-            await run_voice_pipeline(self.token, self.lk_room_name, self.cfg)
-        except asyncio.CancelledError:
-            logger.info("Pipeline cancelled")
-        except Exception:
-            logger.exception("Pipeline failed")

voice.py

@@ -15,9 +15,6 @@ from livekit.plugins import openai as lk_openai, elevenlabs, silero
 
 logger = logging.getLogger("matrix-ai-voice")
 
-# Enable debug logging for agents pipeline to diagnose audio issues
-logging.getLogger("livekit.agents").setLevel(logging.DEBUG)
-logging.getLogger("livekit.plugins").setLevel(logging.DEBUG)
 
 LITELLM_URL = os.environ.get("LITELLM_BASE_URL", "")
 LITELLM_KEY = os.environ.get("LITELLM_API_KEY", "not-needed")
@@ -371,23 +368,8 @@ class VoiceSession:
             except asyncio.TimeoutError:
                 logger.error("Greeting timed out")
 
-            # Periodic E2EE state poll to diagnose incoming decryption
-            _poll_count = 0
             while True:
                 await asyncio.sleep(5)
-                _poll_count += 1
-                if _poll_count % 2 == 0:  # Every 10s
-                    try:
-                        cryptors = self.lk_room.e2ee_manager.frame_cryptors()
-                        for c in cryptors:
-                            logger.info("E2EE_CRYPTOR: identity=%s key_index=%d enabled=%s",
-                                        c.participant_identity, c.key_index, c.enabled)
-                    except Exception as e:
-                        logger.debug("frame_cryptors() failed: %s", e)
-                    # Log E2EE state for all remote participants
-                    for p in self.lk_room.remote_participants.values():
-                        logger.info("REMOTE_PARTICIPANT: identity=%s tracks=%d",
-                                    p.identity, len(p.track_publications))
 
         except asyncio.CancelledError:
             logger.info("Session cancelled for %s", self.room_id)