Continue the write-site rewiring onto the unified storage layer (INV-STG1):
- services/processor.py: extracted-text .txt → DERIVED bucket (a derived
artifact; the DB column is the source of truth per INV-STG5, so the write
stays non-fatal)
- services/docx_exporter.py (export_decision): DOCX → DOCUMENTS bucket via
BytesIO → put_bytes, with a fallback to a direct disk write when the caller
passes an output_path outside DATA_DIR
- services/analysis_docx_exporter.py (build_analysis_docx): same pattern;
out_path is always under DATA_DIR
Under the default STORAGE_BACKEND=filesystem the bytes land at the exact
legacy path (put_bytes → DATA_DIR/key), so behaviour is unchanged. The
disk-reading bits that must stay for now (export_dir glob in _next_version)
are kept; storage-native versioning is a cutover concern.
Still on disk (sync call-sites, follow-up Phase 2c): docx_reviser
(track-changes), docx_retrofit backup, and multimodal thumbnails (rendered in
a to_thread). git-tracked text (case.json/notes/research-md/draft-md) stays on
disk by design (INV-STG7).
tests: 38 storage + docx tests green (incl. test_export_qa_gate /
test_docx_exporter_bookmarks which exercise the real export path); 242
collected, no import breakage.
Keeps G2; advances INV-STG1. Spec: docs/spec/X14-storage-minio.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
