- Add LangChain and LlamaIndex compatibility modules with retriever
  implementations
- Introduce high-level Session API as primary interface replacing Engine
- Add comprehensive test suite for configuration, events, and type
  wrappers with shared fixtures
- Implement batch indexing support in CLI with directory traversal
- Add interactive REPL with document targeting, stats tracking,
  and navigation commands
- Update pyproject.toml with new dependencies and optional extras
  for different integration frameworks
- Refactor CLI commands to use Session-based workflow instead of
  low-level Engine operations

- add Font Awesome stylesheet for icon support
- add Python and Rust SDK links to navigation bar
- remove examples link from navigation bar
- update color scheme from amber to rose with new primary colors
  (#AF788B for light mode, #C9A0AE for dark mode)
- adjust navbar padding and layout for better alignment
- remove footer configuration and related CSS
- implement new hero banner design with rose color scheme
- create responsive layout with flex-based positioning
- add feature pills and principles card to homepage
- update syntax highlighting colors for better contrast
- add prevent-scroll functionality for homepage hero section