refactor: enhance artifact system, security, and terminal command handling

- Add basic HTTP authentication (express-basic-auth)
- Improve artifact tool with better source type handling (command_output, file, text)
- Update agent prompt with clearer artifact usage patterns
- Refactor tmux command execution to use execFile for safer argument handling
- Add UI cancellation capability for in-progress operations
- Switch session dumps to use util.inspect for better formatting
- Update artifact tool schema to require title parameter first

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

packages/voice-assistant/.claude/settings.local.json

@@ -4,7 +4,8 @@
       "WebFetch(domain:vite.dev)",
       "Read(//Users/moboudra/dev/voice-dev/packages/web/app/hooks/**)",
       "Read(//Users/moboudra/dev/voice-dev/packages/web/app/**)",
-      "Read(//Users/moboudra/dev/voice-dev/**)"
+      "Read(//Users/moboudra/dev/voice-dev/**)",
+      "Bash(cat:*)"
     ],
     "deny": [],
     "ask": []