fix(lint): resolve ruff code formatting and unused import warnings in tests

fix(lint): resolve ruff code formatting and unused import warnings

feat(docs): add README.md and ARCHITECTURE.md for Phase 16 completion

feat(ci): configure CI, Hugging Face deploy, and CML model training workflows

feat(k8s): deploy api to kind multinode cluster and verify with adversarial red-teaming simulator

feat(phase12): Supabase persistent store + Row Level Security

feat(observability): upgrade Langfuse tracing per langfuse/skills best practices

chore: remove personal study docs from git tracking

docs(phase11): add full pedagogical summary for Phase 11

feat(phase11): Langfuse LLM tracing + Constitutional Policy Engine

docs(phase10): add full pedagogical summary for Phase 10

feat(phase10): FastAPI REST API + Dockerfile + SSE streaming

feat: initial commit — CustomerCore Phases 1-9 complete