Council v2.1.0: Production-ready AI DAO governance

Features:
- On-chain quality attestation via QualityOracle contract
- TEE CEO decision-making with Lit Protocol fallback
- Compute marketplace integration for deep research
- Prometheus /metrics endpoint
- Comprehensive test suite

Tests:
- 87 contract tests (Council, QualityOracle, CEOAgent)
- 26 integration tests (attestation, compute, TEE, load)
- Playwright API tests for synpress

Infrastructure:
- Docker support (Dockerfile.api, docker-compose.yml)
- Development scripts (start-council-dev.sh)
- README with architecture and configuration