feat: Music Assistant, Claude primary LLM, model tag in chat, setup.sh rewrite

- Deploy Music Assistant on Pi (10.0.0.199:8095) with host networking for
  Chromecast mDNS discovery, Spotify + SMB library support
- Switch primary LLM from Ollama to Claude Sonnet 4 (Anthropic API),
  local models remain as fallback
- Add model info tag under each assistant message in dashboard chat,
  persisted in conversation JSON
- Rewrite homeai-agent/setup.sh: loads .env, injects API keys into plists,
  symlinks plists to ~/Library/LaunchAgents/, smoke tests services
- Update install_service() in common.sh to use symlinks instead of copies
- Open UFW ports on Pi for Music Assistant (8095, 8097, 8927)
- Add ANTHROPIC_API_KEY to openclaw + bridge launchd plists

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

homeai-dashboard/src/hooks/useChat.js

@@ -80,12 +80,13 @@ export function useChat(conversationId, conversationMeta, onConversationUpdate)
     setIsLoading(true)
 
     try {
-      const response = await sendMessage(text.trim(), conversationMeta?.characterId || null)
+      const { response, model } = await sendMessage(text.trim(), conversationMeta?.characterId || null)
       const assistantMsg = {
         id: Date.now() + 1,
         role: 'assistant',
         content: response,
         timestamp: new Date().toISOString(),
+        ...(model && { model }),
       }
       const allMessages = [...newMessages, assistantMsg]
       setMessages(allMessages)