- Section-split first for structured notes - Large sections (>max_section_chars) broken via sliding-window - Small sections stay intact with heading preserved - Adds max_section_chars config (default 4000) - 2 new TDD tests for hierarchical chunking
- Section-split first for structured notes - Large sections (>max_section_chars) broken via sliding-window - Small sections stay intact with heading preserved - Adds max_section_chars config (default 4000) - 2 new TDD tests for hierarchical chunking