Phase 0-2: Schema cleanup, typed relations, event-driven automation

- Phase 0: AGENTS.md cleanup (dedup quotes, renumber sections, merge qmd)
- Phase 1: typed relations (manage-relations.py, graph-search.py, check-staleness.py, detect-conflicts.py)
- Phase 2: frontmatter validator, weekly lint, knowledge promotion, git hooks
- Fix .gitignore to track tools/ and .githooks/
- Fix git remote URL (remove plaintext token)
- New wiki pages: 504 pages, 34 raw sources

tools/epub_converter/README.md

@@ -0,0 +1,76 @@
+# EPUB to Obsidian Converter
+
+Convert EPUB books to Obsidian Markdown notes with proper chapter structure and frontmatter.
+
+## Installation
+
+```bash
+# Install dependencies
+pip install html2text beautifulsoup4
+
+# Ensure Calibre is installed (for ebook-convert)
+scoop install calibre
+```
+
+## Usage
+
+### Command Line
+
+```bash
+python -m tools.epub_converter <input.epub> <output_dir> [--author "Author"] [--tags "tag1,tag2"]
+
+# Example
+python -m tools.epub_converter "book.epub" "output_folder" --author "Author Name" --tags "tag1,tag2"
+```
+
+### Python API
+
+```python
+from tools.epub_converter import EpubConverter
+
+converter = EpubConverter()
+files = converter.convert(
+    "input.epub",
+    "output_dir",
+    author="Author Name",
+    tags=["tag1", "tag2"]
+)
+print(f"Created {len(files)} files")
+```
+
+## Features
+
+- Extracts metadata from EPUB (title, author, publisher, date)
+- Handles OEBPS format with anchor-based TOC
+- Calibre normalization for complex EPUB structures
+- Splits into per-chapter Obsidian notes
+- Standard YAML frontmatter for Obsidian
+
+## Output Format
+
+Each chapter file includes:
+
+```yaml
+---
+title: "Chapter Title"
+categories:
+  - "[[LLM Wiki]]"
+  - "[[Books]]"
+tags:
+  - book
+  - epub
+  - custom-tags
+book: "[[Book Title]]"
+author: "[[Author Name]]"
+section: "Section Name"
+created: "YYYY-MM-DD"
+type: book-chapter
+---
+```
+
+## Requirements
+
+- Python 3.10+
+- Calibre (ebook-convert)
+- html2text (recommended)
+- beautifulsoup4 (optional fallback)