MCP Registry Fix

• Added mcpName field to package.json for MCP registry publication
  • Required by MCP registry: "mcpName": "io.github.xplusplusai/fo-semantic-mcp"
  • Enables discovery in MCP registry

No Functional Changes

This is a metadata-only release. All fixes from v2.0.6 are included:

• MCP protocol initialization fix (removed stdin encoding)
• Emoji-free prompts for clean display

Users on v2.0.6 can continue using it - the only difference is MCP registry compatibility.