D2: RAG service stores section/section_title/paragraph/paragraph_num/page
from embedding service chunks_with_metadata into Qdrant payloads.
D3: Control generator prefers section > article > section_title from
Qdrant, adds page to source_citation and generation_metadata.
D4: Validated with real BGB §§ 312-312k text. Found and fixed critical
bug where Phase 3 overlap destroyed the [§ ...] section prefix, causing
only the first chunk per document to have metadata. All subsequent
chunks lost section info.
Also fixes pre-existing lint issues (unused imports, ambiguous variable
names, duplicate dict key, bare except).
456 tests passing (58 embedding + 387 pipeline + 11 rag-service).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Switch to Ollama's bge-m3 model (1024-dim) for generating embeddings,
solving the dimension mismatch with Qdrant collections. Embedding-service
still used for chunking, reranking, and PDF extraction.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The embedding-service exposes endpoints at root level (/chunk, /embed,
/extract-pdf, /rerank) not under /api/v1/. Fix the RAG service's
embedding client to use the correct paths.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>