Updated the embedded agentic tooling stack:

• Claude Code → 2.1.19
• Copilot CLI → 0.0.394
• Codex → 0.91.0
• Playwright MCP → 0.0.58 / Browser → v1.58.0
• Sandbox runtime → 0.0.32

Recompiled workflows and refreshed constants tests to match the new expectations.