refactor: split music streaming into Hope Music

Move the media server, downloader, library volume, and browser player to the
standalone hope-media-music product. Keep Hope's music tools as a thin HTTP
client of the LAN service on port 8094.

Use a stable voice-room player scope instead of ephemeral LiveKit room names.
The agent now owns the conversation handshake: fresh reported playback mutes
its input, joining pauses music, and the last participant leaving resumes only
music it paused. Peer failures remain non-fatal.

Also move the voice deploy workflow onto the active Unraid Gitea runner and
remove yt-dlp/ffmpeg/media health and volume dependencies from the image.

tests/README.md

@@ -15,7 +15,7 @@ tool servers, and agent process.
 ## Run
 
 ```bash
-cd /home/shane/dev/voice
+cd ~/dev/hope-voice-api
 python -m pytest tests/ -v            # everything
 python -m pytest tests/ -v -m "not slow"   # skip LLM/network-heavy tests
 ```
@@ -27,7 +27,7 @@ python -m pytest tests/ -v -m "not slow"   # skip LLM/network-heavy tests
 | `test_web_ui.py` | nginx HTTPS UI (:9178) + token endpoint (:8091) | static assets, `/token` (direct + via nginx), `/livekit/` proxy |
 | `test_llm_api.py` | LLM API directly | completion, tool calling, `enable_thinking=false` latency, streaming |
 | `test_mcp_tools.py` | MCP servers via `docker exec` | weather/time, authenticated remote memory save/recall/delete, and local skills — probes are cleaned up |
-| `test_media.py` | media server API + player UI + media MCP | library/player state flow, Range proxy, static mp3 Range, live YT Music search (`-m slow`), gated full download (`HOPE_RUN_YTDLP_DOWNLOAD=1`) |
+| `test_media.py` | external Hope Music boundary + media MCP client | LAN service health, stable room scope, split regression guards, local-container MCP probes |
 | `test_agent_integration.py` | running container | agent process alive, worker registered with LiveKit, all 4 supervised processes up, container health, LiveKit HTTP API |
 | `test_compaction.py` | `HopeLLM._compact_context` in-container | compaction triggers >24 items, system prompt preserved, short context untouched |