- Upgrade OpenAI SDK from v1 to v2 (1.109.1 → 2.7.1)
- Remove version constraints for openai and pydantic
- Update openai-agents (0.3.3 → 0.5.0) and other dependencies
- Sync model metadata: update pricing, context lengths, and parameters
- Remove deprecated models (text-embedding-3-large, qwen3-vl-32b-instruct, shisa-v2-llama3.3-70b)
- Bump version to 0.6.0