v0.0.116

Key Highlights

• Add Vercel MCP tools section to WORKFLOW_TESTING_GUIDE
• Rewrite tool descriptions to enforce diagnose-fix-verify loop
• Capture d3k stdout/stderr to d3k-startup.log and dump logs on CDP failure
• Add always-on diagnostic logging to CDPMonitor for sandbox debugging
• Add Node.js spawn() diagnostic test for Chrome in sandbox