HTML files from gesetze-im-internet.de were decoded as raw UTF-8, keeping
<div>/<p> tags intact. The legal chunker regex requires § at line start,
which never matched inside HTML tags → 0% section metadata for HTML docs.
Fix: detect HTML content and strip tags before sending to embedding
service. Block elements become newlines, entities are decoded.
§ signs now appear at line starts → section detection works.
Also adds D5 re-ingestion scripts (reingest_d5.py + config) for
batch re-processing of all documents in Qdrant collections.
27 rag-service tests passing.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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>
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