## 2026-10-08 — translation and QA improvements

- Replace regex tag extraction with balanced DOM placeholders and protect literal φ.
- Fail closed on invalid translations; selectively retry and checkpoint validated chunks.
- Add persisted whole-book terminology, alias exclusions, conflict reports and resume fingerprints.
- Repair malformed HTML and extract disjoint mixed/list/table units with stable anchors.
- Preserve the original EPUB package, stylesheet links, navigation and resources.
- Add structural audits, Calibre visual evidence and offline agent-manifest QA scripts.

# Changelog

## v0.13 (2026-02-01) - Typography & Extraction Fixes

### New Features
- **Typography V3 (Safe Mode)**: Implemented conservative CSS fixes for Drop Caps.
    - Resolves overlap between Drop Caps and Chinese text using `clear: both`.
    - Fixes "Double Indentation" on Drop Cap paragraphs.
    - Preserves original alignment (e.g. centered titles) by relaxing aggressive resets.
    - Intelligent `no-indent` class assignment based on specific keywords (`drop`, `no-indent`).

### Bug Fixes
- **Endnote Extraction**: Fixed a critical bug where citations like `[28]` caused Integrity Check failures.
    - **Extraction Logic**: Regex updated to treat `[N]` patterns as structural elements, preserving links.
    - **Integrity Check**: Added "Placeholder Hydration" to correctly validate content when placeholders encapsulate visible text.
    - **Result**: Prevents fallback to plain text, ensuring links and italics are preserved in complex paragraphs.

### Pipeline
- **Preprocessing**: `FormatExtractor` now more robust against mixed content.

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## v0.12 (Previous)
- Architecture Refactor complete.