- Add context_size, condense_context, and condense_method fields to Model class
- Create new context.py module with ContextManager and condensation methods
- Implement hierarchical, conversational, semantic, and algoritmic condensation
- Calculate and report effective_context for all requests
- Update handlers.py to apply context condensation when configured
- Update providers.json and rotations.json with example context configurations
- Update README.md and DOCUMENTATION.md with context management documentation
- Export context module and utilities in __init__.py