Cursor MCP integration and architecture map usability release.
- Add the bundled Arch4 MCP server, MCP widget, and Cursor plugin packaging so
Cursor can show and update architecture maps through MCP tools. - Add Cursor commands and support-request workflow wiring for MCP-backed
architecture map operations. - Improve the architecture viewer tree, related-view navigation, layout
controls, and node detail interactions used by the Cursor extension and MCP
widget. - Fix node label sizing, text clipping, diagram geometry, and dynamic view
component boundaries in rendered maps. - Expand tests for viewer behavior, Structurizr normalization, workflow
orchestration, MCP server behavior, and Cursor extension integration.