SideWave 0.4.0

Removed

• The MCP voice agent: the local MCP server, the sidewave-mcp helper, and agent voices. On first
  launch SideWave clears the settings and keychain item they left. Relay (Press Return after
  dictation) stays in Experimental.

Fixed

• Help matches the app: the panel you see while SideWave gets ready, refine cadence defaults,
  control and menu names, and the vocabulary switches.