feat: VoiceCoach v2 — livekit-agents 1.5 personal voice assistant

Replaces pipecat 0.0.48 (6 manual patches, DuplicateIdentity reconnect storms)
with livekit-agents 1.5 SDK. New features:
- SvelteKit UI with live transcript, VAD ring, mode bar, vocal meter, history view
- SQLite session store with WAL mode (cross-session memory)
- Async SpeechBrain vocal/emotion analysis injected per turn
- Homelab tools: SSH/docker, Prometheus alerts, Home Assistant, SearXNG search
- OpenClaw LLM gateway preserved (qwen2.5:14b via Ollama)
- 4 modes: coaching, vent, practice, briefing

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

compose/hf-pdocker-01/voicecoach-v2/agent/main.py

@@ -0,0 +1,29 @@
+"""VoiceCoach v2 — entry point."""
+import logging
+import os
+import threading
+
+from livekit.agents import WorkerOptions, cli
+
+import server
+from agent import entrypoint
+
+logging.basicConfig(level=logging.INFO)
+
+
+def run_api_server():
+    server.run()
+
+
+if __name__ == "__main__":
+    api_thread = threading.Thread(target=run_api_server, daemon=True)
+    api_thread.start()
+
+    cli.run_app(
+        WorkerOptions(
+            entrypoint_fnc=entrypoint,
+            ws_url=os.getenv("LIVEKIT_URL", "ws://voicecoach-livekit:7880"),
+            api_key=os.getenv("LIVEKIT_API_KEY"),
+            api_secret=os.getenv("LIVEKIT_API_SECRET"),
+        )
+    )