fix(arch): End-to-end BYOK support for unified architecture

feat(SPEC-16): Unified Chat Client Architecture (#115)

docs: Clarify config parameter behavior in factory.py

fix: P0 Advanced Mode timeout synthesis + CodeRabbit recommendations

feat(SPEC_11): finalize transition to Sexual Health Research Specialist

feat: SPEC_10 - Domain-Agnostic Refactor + License Fix (#87)

feat(SPEC-08): Integrate shared memory layer + CodeRabbit fixes (#74)

feat: Integrate LangGraph for enhanced research orchestration

fix: Address audit findings in orchestrators package

refactor: Organize orchestrators into dedicated package