Coding agent suite tests
Use test/suite/ for the new harness-based test suite around AgentSession and AgentSessionRuntime.
Rules:
- Use
test/suite/harness.ts - Use the faux provider from
packages/ai/src/providers/faux.ts - Do not use real provider APIs, real API keys, network calls, or paid tokens
- Keep these tests CI-safe and deterministic
- Do not use or extend the legacy
test/test-harness.tspath unless a missing capability forces it