v1.5.0: Frontmatter Strip + Metadata Storage

What's New

• Frontmatter strip + metadata — YAML frontmatter is stripped before embedding to reduce noise; tags and aliases are parsed and stored as Milvus metadata fields
• New chunking.py module — strip_frontmatter(), _normalize_meta(), inject_header_prefix(), merge_small_chunks()
• CRLF-safe regex — handles both \n and \r\n line endings
• Type safety — _normalize_meta() handles None, bare string, and list YAML values
• Rate limit fix — EMBEDDING_CONCURRENT_BATCHES default reduced from 3 to 2

Full Changelog

v1.4.0...v1.5.0