- Replace legacy line-based chunking with AST tree approach that builds
a complete document skeleton with content inlined under relevant
sections
- Add new chunking parameters: chunk_chars (default 2000) and embed_toc
(default True) to control content size and TOC inclusion
- Implement recursive chunking algorithm that respects structural
boundaries (code lines, table rows, list items) and prevents splits
inside blocks
- Introduce part markers [Part X/N] for oversized leaf blocks that
require splitting
- Add CLI tool for inspecting parsed chunks and edges with options for
preview and configuration
- Refactor edge extraction to use FileEdge.from_text instead of
parse_wikilinks for consistency
BREAKING CHANGE: Chunk format changes significantly with full TOC
skeleton wrapping content, affecting embedding models expecting
breadcrumb prefixes.
