feat(rag): ingest CLI (markdown/PDF → chunks → FAISS) + sample KB fixtures

fix(rag/store): copy vectors before in-place normalize_L2 (no caller mutation)

feat(rag): FAISS inner-product store with chunk metadata + roundtrip

feat(rag): fastembed wrapper (Embedder, bge-small-en-v1.5, 384-dim)

feat(rag): paragraph-aware chunker (chunk_text)

fix(gitignore): blanket-ignore data/knowledge_base/ except README+.gitkeep

feat(rag): add fastembed/faiss-cpu/pypdf for retrieval layer

md updates

feat(llm): user-question-driven prompt (language match + intent split)

chore(diag): add /diag/openrouter endpoint + sidebar button

chore(deploy): trigger HF Space rebuild to pick up rotated secret

fix(deploy): drop hard-coded NEUROBRIDGE_DISABLE_LLM=1 from Dockerfiles

project overvew udpate

Merge branch 'feature/real-llm-rationale' into main

fix(test): attach caplog handler to non-propagating explainer logger

test(llm): tighten live integration test (slow marker, log-gated skip, on-topic assertion)

test(llm): add network-gated end-to-end OpenRouter integration test

docs(llm): add probe-date + 429-policy notes; fix chain capability order

feat(llm): refresh free-tier chain with verified-live OpenRouter IDs

feat(llm): classify 401 as fatal+actionable, 400 as skip-this-model

test(llm): pin 401 short-circuit + 400 try-next-model behavior (red)

chore(llm): one-shot OpenRouter free-tier reachability probe

chore: add real-llm-rationale plan + ignore .worktrees/

feat(llm): OpenRouter free-tier fallback chain (smartest → smallest)

fix(frontend): toast icon must be valid emoji, not ✓

docs(notes): manual click-through checklist for HF Space smoke verification

fix(deploy): smoke probe survives network failure (capture curl exit) + clearer label + 15s timeout

fix(deploy): smoke probe — POST to unknown path expects 403, not GET to /health

test(deploy): scripts/smoke_hf_space.sh — sealed HTTP envelope probe

test(deploy): assert Dockerfile and Dockerfile.hf stay byte-identical

fix(deploy): seed EEG fixture, run all pipelines at build, drop MLflow kill-switch

test(deploy): scan ENV lines only in MLflow kill-switch guard (avoid comment false-positive)

test(deploy): assert Dockerfile seeds EEG fixture, runs all pipelines, drops MLflow kill-switch (RED)

fix(frontend): EEG default path points at fixture (HF container has no data/raw/eeg.fif)

feat(frontend): premium motion layer — Apple HIG / Netflix transitions

docs: add PROJECT_OVERVIEW.md — full Turkish narrative for jurors / new readers

feat(frontend): editorial redesign — neutral-gray dark + sand accent + dual theme

fix(deploy): seed data/raw + run bbb_pipeline before bbb_model in build

deploy: alias Dockerfile.hf to Dockerfile for HF Spaces auto-discover

docs: Day-8 close-out — AGENTS §12-§14 + README Day-8 row

docs(README): HF Spaces YAML + 5-sentence Executive Summary + Demo Scripts

feat(deploy): Hugging Face Spaces Dockerfile + supervisord launcher

feat(frontend): Experiments tab — MLflow runs table + two-run diff

feat(api): GET /experiments/runs + POST /experiments/diff (Track 5)

feat(frontend): inline AI Assistant in EEG + MRI tabs

feat(api): POST /explain/eeg + /explain/mri — full-stack Track-1 coverage

feat(llm): modality dispatch — explain(payload, modality) for BBB/EEG/MRI

docs(plan): Day-8 Grand Finale — multi-modal agents, Track 5, HF deploy

docs: Day-7 close-out — AGENTS §10 drift + §11 LLM explainer + README recipe

feat(frontend): AI Assistant tab — natural-language explainer