fix(phase5): align configs and add agent tests

fix: linting and types for phase 5

fix: pass API keys explicitly to pydantic-ai providers

fix: pydantic-ai v1 compatibility and Anthropic model update

refactor(phase4): address CodeRabbit review

feat(phase4): Orchestrator and UI complete

fix: add type ignore comment for Agent instantiation in JudgeHandler

fix(tests): resolve mypy divergence and test failures

feat(phase3): implement judge slice (LLM Judge, Prompts, Models)

fix(phase2): address CodeRabbit review feedback + add examples

fix: resolve mypy divergence between make check and pre-commit

feat(phase2): implement search slice (PubMed, Web, Orchestrator) (#4)

feat(phase1): Foundation & Tooling complete

adds scaffolding

adds scaffolding