MCP servers for e2e-testing

Standalone Go runner and @9l/playwright SDK for bounded Playwright execution with validated receipts.

Your app generates its own verified UI transition graph — screens as nodes, guarded (event, effect) edges. Proof-gated verification, trust tiers, model-free MCP for AI agents.

Model your API as a graph once. Long-chain integration tests, layer × environment matrices, CI-ready runs, and an MCP server — all from the same YAML.