Grok Build 0.2.50

Mermaid flowcharts now render edge crossings clearly instead of fusing unrelated connections. Sequence diagrams with activate, autonumber, par, and more now render instead of showing parse errors. MCP servers menu and slash commands now work when starting grok outside a project directory. Ctrl+W in the prompt now deletes whole words like bash instead of stopping at punctuation. Login no longer quits when an authentication code contains the letter q.