- Add aisbf/batching.py module with RequestBatcher class
- Implement time-based (100ms window) and size-based batching
- Add provider-specific batching configurations (OpenAI: 10, Anthropic: 5)
- Integrate batching with BaseProviderHandler
- Add batching configuration to config/aisbf.json
- Initialize batching system in main.py startup
- Update version to 0.8.0 in setup.py and pyproject.toml
- Add batching.py to setup.py data_files
- Update README.md and TODO.md documentation
- Expected benefit: 15-25% latency reduction

Features:
- Automatic batch formation and processing
- Response splitting and distribution
- Statistics tracking (batches formed, requests batched, avg batch size)
- Graceful error handling and fallback
- Non-blocking async queue management
- Streaming request bypass (batching disabled for streams)